Gupta, R. K., M. C. Agarwal, and Hira Lal. “Prediction Model for Thirteen Tree Species Suitable for Agro-Forestry Systems in the Himalaya”. Indian Forester 116, no. 9 (September 1, 1990): 699–713. Accessed December 4, 2025. http://indianforester.co.in/index.php/indianforester/article/view/8900.