Chopra, S. S., and Y. Sankaranarayanan. “Correlation of Quality of Lac (especially Colour) With the Climatic Conditions of the Growing Region”. Indian Forester 92, no. 3 (March 1, 1966): 191–195. Accessed December 4, 2025. http://indianforester.co.in/index.php/indianforester/article/view/25327.