Books

1.	Language Policy and Multilingual Education in Singapore: Implications for Foreign Language Education in Japan.
2.	Reasons for Japanese Language Education in English-speaking Countries - The Case of Singapore.
3.	JUNHAI GUO, Teow, S. H., Lydia, N. Yu Jose., Ricardo, T. Jose and Yoshimura, M.(Eds.,), Popularizing Japanese Language during the Japanese Occupation of Singapore, 1942-1945: An Analysis of the Nippon-Go Lesson Columns in the Syonan Times, In Teow, S. H., Lydia, N. Yu Jose., Ricardo, T. Jose and Yoshimura, M.(Eds.,) "Japan and Southeast Asia: Continuity and Change in Modern Times"., Ateneo de Manila University Press, 2013.07.
4.	Japan-Singapore:from the Perspective of Japanese Language Education.
5.	Dynamics of Languages in a Multi-ethnic Society: A case study of Singapore. Tokyo: Hituzi Shobo..
6.	Guo, J. H., Teaching and Learning Japanese in Singapore. In Y. H. Tsu (ed.) Japan and Singapore: A multidisciplinary approach., Singapore: McGraw-Hill Education (Asia), 319 ページ, 2006.06.
7.	Okita, Y. and Guo, J. H., Learning of Japanese Kanji Character by　Bilingual and Monolingual Chinese Speakers. In J. Cenoz & B. H. U. Jessner (Eds.), Looking Beyond Second Language Acquisition: Studies in Tri-and Multilingualism., Germany: Stauffenburg Publisher, pp. 63-74, 2001.09.

Papers

1.	Singapore's Immigration Policy: A focus on "The White Paper"　Debate.

Presentations

1.	Guo Junhai, Teaching and Learning Chinese as a Heritage Language in Japan, CLaSIC2022 "FOREIGN LANGUAGE EDUCATION IN THE 21ST CENTURY: REVIEW, RE-CONCEPTUALISE AND RE-ALIGN", National University of Singapore, 2022.12.
2.	Japanese university students' perceptions of 'Nativeness' in leaning English. .
3.	Guo Junhai, Teaching and Learning English in Japan: with a focus on nativeness in learning English by Japanese university students, CLS20th Anniversary e-Symposium, National University of Singapore, 2021.12.
4.	Current Situation of Multilingual Education in Singapore.
5.	Language policy and community building in a multicultural society： learn from Singapore.
6.	Guo, J. H., Popularizing Japanese language during the Japanese occupation of Singapore 1942-1945: An analysis of the Nippon-Go Lesson columns in the Syonan Times., The 21st Conference of the International Association of Historians of Asia (IAHA), 2010.06.
7.	Guo, J. H., What the media had taught? Japanese language popularization in Singapore under the Japanese rule 1942-1945, The ３ｒｄ CLS International Conference(CLaSIC　2008) on "Media in Foreign Language Teaching and Learning", 2008.12.
8.	Guo, J. H., Japanese language teaching in Singapore during the Japanese occupation, 1942-1945, The 15th Biennial Conference on Japanese Studies, 2007.07.
9.	Guo, J. H. and Quan, J. J, Attitudes and motivation of Chinese university students towards learning Japanese, CLaSIC 2006 on "Processes and Process-Orientation in Foreign Language Teaching and Learning", 2006.12.
10.	Guo, J. H., Motivation and Japanese language learning: Examining the role of expectancy of success, International Conference on "Current Perspectives and Future Directions in Foreign Language Teaching and Learning", 2004.12.
11.	Okita, Y., Guo, J. H. and Chen, L. H., The influence of Chinese knowledge on learning kanji by Chinese-Singaporean learners of Japanese, International Conference on "Current Perspectives and Future Directions in Foreign Language Teaching and Learning", 2004.12.
12.	Okita, Y., JUNHAI GUO, Motivation to learn Japanese in a university in Singapore, The 24th Annual Congress of Applied Linguistics, 1999.09.
13.	Okita, Y. and Guo, J. H., Learning Japanese Kanji character by bilingual Chinese Singaporean and monolingual Chinese, International Conference on the Third Language Acquisition and Trilingualism, 1999.09.

【Teaching】
◎Post-graduate education：　Lectures, students supervision and thesis examination (Graduate School of Integrated Sciences for Global Studｙ, PhD thesis Co-examiner)
◎General Education for Undergraduates:　Japanese Language III；　Seminar on Language Policy
◎International Education
⦿ATW(Asia in Today's World): Coordinator for Japanese Language Courses (~2010)
⦿JTW(Japan in Today's World): Lectures and "Independent Study Project” supervision (~2009)
⦿AsTW(ASEAN in Today's World): Chief Coordinator (curriculum development, planning, and students' supervision,　etc. 2009-2014)
⦿The Career Development Program for Foreign Students from Asia--The Foreign Students' High Specialty Practice Operation (curriculum development of Business Japanese training,~2009)
⦿JLCC(Japanese Language and Culture Course):Coordinator　(since Oct 2011). Responsible for ｐrogram management, curriculum development, and student supervision; Courses taught includes: "Independent Study Project", "Introduction to Japanese Language and Culture", etc.
⦿Japanese Language Courses offered at the International Student Center for international students