1. An ecological reconnaissance of Wilpattu National Park, Ceylon;Eisenberg;Smithson. Contrib. Zool.,1972
2. Ecological studies on populations of elephants in the Gal Oya area in relation to distribution, habitat preferences, competition and food availability;Ishwaran,1979
3. Comparative study on elephant populations in Gal Oya, Sri Lanka;Ishwaran;Biol. Conserv.,1981
4. Elephants as agents of habitat and landscape change in East Africa;Laws;Oikos,1970
5. Elephants and their habitats: the ecology of elephants in North Bunyoro, Uganda;Laws,1975