1. Aiyar, T. V. V. (1932). The sholas of the Palghat Division—A study in the ecology and silviculture of the tropical rain forests of Western Ghats. Parts I and II. Indian Forester: pp. 414–432; 473–486.
2. Basic data and concepts on the social organization of Macaca fascicularis. In;Angst,1975
3. Anonymous, (ed.). (1960). “Proceedings of the All-India Tropical Moist Evergreen Forest Study Tour and Symposium.” Forest Research Institute, Dehra Dun.
4. Balaram, C. (1974). Problems of ‘kole’ cultivation. Indian Express Suppl., Kerala Montage, Cochin, Dec. 25 1974, p. I.
5. Intertaxa interactions in a Malayan primate community;Bernstein;Folia Primatol,1967