| 1 | 『明治期日本における稲作技術の普及過程と農民参加:スリランカ農業との比較研究』、東京大学大学院農業経済学研究科、１９８５年３月、３００ページ（日本語）: 修士論文題目：
Master Thesis: The Extension Process of Paddy Cultivation Technologies and Farmers’ Participation in Meiji Era, Japan: Comparative Study between Japan and Sri Lanka, Faculty of Agriculture, Department of Agricultural Economics, University of Tokyo, Japan, 1985, 300 Pages, (Japanese) |
| 2 | トヨタ財団の個人研究助成を受ける,研究題目：農産物加工の発展と新しい流通システム：スリランカと日本との比較研究、１９８６年～１９８８年、Toyota Foundation Research Grant, Survey on Development of Processing of Agricultural Products and New Distribution System: Comparative Study between Sri Lanka and Japan, 1986-1988 |
| 3 | 林周二「経営と文化」(Hayashi Shuji, Culture and Management in Japan), Translated to Sinhala Language, 「ජපන් සංස්කෘතිය හා කලමනාකරණය」(Japan Sanskurthiya ha Kalamanakaranaya」, Toyota Foundation Grant for Translation and Publication, Karunarathne and Sons Ltd., Colombo 10, Sri Lanka, 1998 |
| 4 | 文部省科学研究費助補助金、基盤研究（C）（２）、佐賀大学経済学部、研究課題：スリランカの農村貧困軽減に向けた日本のODAの可能性――青年海外協力隊に関する研究（１９９９年－２００２年まで）。 Grant-in-Aid for Scientific Research (c) (2), Ministry of Higher Education in Japan: The Role of Japanese Overseas Cooperation Volunteers in Alleviation of Rural Poverty in Sri Lanka: Perspectives, 1999-2002 |
| 5 | 中村隆英「日本経済その成長と構造」Translated to Sinhala Language、「පශ්චාත් යුද්ධකාලීන ජපන් ආර්ථිකය」、Toyota Foundation Grant for Translation and Publication, 1999-2000: Pasuchath Yuddhakalina Japan Arthikaya (The Postwar Japanese Economy), Translated to Sinhala Language, Karunarathne and Sons Ltd., Colombo 10, Sri Lanka, 2000 |
| 6 | 文部省科学研究費助補助金、基盤研究（C）（一般）、研究課題：スリランカの経済発展に対する日本の「人的資源育成」援助の貢献―政策的・実証的研究（２００８年～２０１１年）.
Grant-in-Aid for Scientific Research (c) (2) Ministry of Higher Education in Japan: Contribution of Japanese Assistance on Human Capital Development towards Economic Development in Sri Lanka: A Survey on Policies and Performances、2008-2010 |
| 7 | 文部省科学研究費助補助金、基盤研究（C）（一般）、研究課題：スリランカの「ソーシャル・ビジネス」の展開と貧困削減：日本の技術協力に関する研究（２０１１年～２０１４年）.
Grant-in-Aid for Scientific Research (c) (2) Ministry of Higher Education in Japan: Sri Lanka’s Social Business Development and Poverty Reduction: A Study on Japanese Technical Cooperation, 2011-2014 |
| 8 | 文部省科学研究費助補助金、基盤研究（C）（一般）、研究課題：アジアの貧困軽減と日本の労働力不足解消に対する日本の「外国人技能実習制度」の貢献（２０１４年～２０１８年）.
Grant-in-Aid for Scientific Research (c) (2) Ministry of Higher Education in Japan: Contribution of Japan’s “Foreign Technical Intern Training Program” on Alleviation of Poverty in Asia and Resolve of Labor Shortages in Japan, 2014-2018 |