Wickramasinghe, D.D. (1993) Biodiversity. (in Sinhala). Sri Lanka Association of the Advancement of Science, Sri Lanka.
Wickramasinghe, D.D. (1993) Let’s Protect the Ozone Layer (in Sinhala). Mihikatha Institute, Sri Lanka. (publication coordinator and the compiler of the book written by Dr. M. Suathipala).
Kotagama, S.W. and Wickramasinghe, D.D. (1995) Biodiversity (in Sinhala). Mihikatha Institute, Sri Lanka.
Wickramasinghe, D.D. (2013) Composting as a solution to the solid waste problem. (in Sinhala) National Cleaner Production Center, United Nations Industrial Development Organization (UNIDO), Sri Lanka.
Wickramasinghe, D. D. (2016) Negotiation and Decision-Making skills for the Community Based Organizations. The University of Colombo and International Labour Organization, Sri Lanka.
Wickramasinghe, D.D. and Hettiarachhi, M. (2020) Construction Green Guide: An environmental guide to the construction stage of building projects. Construction Industry Development Authority. Sri Lanka. Pages 67.
Wickramasinghe, Deepthi and Weerasinghe, Yugani (2021) Protect Bolgoda Wetland (in Sinhala). Sri Lanka Watre Partnership, a member of Global Water Partnership, Sri Lanka. Pages 16.