Kotagama S.W., (Co-Editor)
WILDLIFE OF SRI LANKA FOR CERTIFICATE COURSE IN WILDLIFE CONSERVATION AND MANAGEMENT
Open University of Sri Lanka. pp 32, 1992.
Kotagama S.W. and Pararajasingham E.,
TECHNOLOGY, SOCIETY AND ENVIRONMENT- B.TECH LEVEL 5
Section on Environment, Open University of Sri Lanka.
Member of Course team-
MAN AND ENVIRONMENT – Set of 6 books Indira Gandhi Open University. Delhi. 1994.
Kotagama S.W. and Sahajananthan S.,
FAUNA AND FLORA OF UVA
Uva Wansa Kathawa (History of the Uva Province); Vol. I and 2 – Chapter 3.
Contribution to ASIAN WETLAND DIRECTORY – SRI LANKA WETLANDS (41).
Scott D.A(edt). A Directory of Asian Wetlands, IUCN Gland, Switzerland and Cambrideg. UK. Pp583-634. (1989)
Kotagama S.W. and Rajapakse I.K., (Compilers)
CONSERVATION OF FAUNA AND FLORA-LEVEL 5
Open University of Sri Lanka
Kotagama S.W., (Co-Editor)
BASIC ECOLOGY FOR CERTIFICATE COURSE IN WILDLIFE CONSERVATION AND MANAGEMENT
Open University of Sri Lanka. pp 73,1992.
Kotagama S.W., (Co-Editor)
BASIC BIOLOGY FOR CERTIFICATE COURSE IN WILDLIFE CONSERVATION AND MANAGEMENT
Open University of Sri Lanka. pp 213, 1992.
Kotagama S.W.,
KURULLAN NARAMBAMU (Sinhala–let’s watch birds)
Pubudu Prakasakayo, pp.134, 1986.
Kotagama S.W., (Co-Editor/Co-Writer)
ECOLOGY II
Open University of Sri Lanka
Kotagama S.W., (Co-Editor/Co-Writer)
ECOLOGY I
Open University of Sri Lanka
Kotagama S.W.,
PARISARAYA HANDIVIMAK ( Sinhala–introduction to ecology
Pubudu Prakasakayo, pp 85.
Perera D.G.A. and Kotagama S.W.,
SYSTEMETIC SINHALA NOMENCLATURE FOR THE BIRDS OF SRI LANKA
Thisara Prakasakayo, pp.108, 1983.
Contribution to the Reprint of the HISTORY OF BIRDS OF CEYLON by Capt. VINCENT LEGGE.
Tissara Prakasakayo, 1983.
Kotagama S.W., Arudpragama K.D. and Kotalawala I.,
A CHECK LIST OF AMPHIBIA OF SRI LANKA
UNESCO, Man and Biosphere National Committee of Sri Lanka, Publication No.10, NARESA
Arudpragasam K.D., Kotalawala I. and Kotagama S.W.,
A CHECK LIST OF THE MAMMALS OF SRI LANKA
UNESCO, Man and Biosphere National Committee of Sri Lanka, Publication No.9, NARESA.