Attributes / relations provided by
♦ ¹del Hoyo, J., Elliott, A., Sargatal, J., Christie, D.A. & de Juana, E. (eds.). Handbook of the Birds of the World Alive. Lynx Edicions, Barcelona.
♦ ²IDENTIFYING DIURNAL AND NOCTURNAL FRUGIVORES IN THE TERRESTRIAL AND ARBOREAL LAYERS OF A TROPICAL RAIN FOREST IN SRI LANKA, Palitha Jayasekara, Udayani Rose Weerasinghe, Siril Wijesundara & Seiki Takatsuki, ECOTROPICA 13: 7–15, 2007
♦ ³Nandini, R., and N. Parthasarathy. "Food habits of the Indian giant flying squirrel (Petaurista philippensis) in a rain forest fragment, Western Ghats." Journal of Mammalogy 89.6 (2008): 1550+. Academic OneFile. Web. 15 July 2014.
♦ ⁴Food Selection by the South Indian Leaf-Monkey, Presbytis johnii, in Relation to Leaf Chemistry, John F, Oates, Peter G. Waterman and Gillian M. Choo, Oecologia (Berl.) 45, 45-56 (1980)

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