1. Crocodile Conservation in Nepal;Andrews,1994
2. 1996 IUCN Red List of Threatened Animals;Baillie,1996
3. The Jungle in Sunlight and Shadow;Champion,1934
4. Wildlife and People: the Zimbabwean Success;Child,1995
5. Clark, A., 1901. (Reprint edition 1971). Sport in the Low-country of Ceylon. Tisara Prakasakyo, Dehiwela, Sri Lanka.