Bhattacharyya, T. P., A. Murmu, S. Chaudhuri, and P. C. Mazumder. 2008. “Status of Four Arboreal Species of Mammals in Darjeeling District, West Bengal, India”. Records of the Zoological Survey of India 108 (3):9-19. https://doi.org/10.26515/rzsi/v108/i3/2008/159039.