Kumar, S. V., and P. S. Raghavaiah. 1997. “Modern Housing Facilities for Breeding of Elephants in Sri Venkateswara <I>Zoological park< I>, Tirupati, Andhra Pradesh”. Indian Forester 123 (10):924-28. https://doi.org/10.36808/if/1997/v123i10/6117.