Ullah, Wasi, S. K. Gupta, Ram Babu, and M. S. Nayal. “Raingauge Density for Small Watershed”. Indian Forester 95, no. 2 (February 1, 1969): 98–101. Accessed December 5, 2025. http://indianforester.co.in/index.php/indianforester/article/view/26052.