Dulal, Sushmita, and Ramesh Man Singh. “Fuel Briquettes from Sal (Shorea Robusta) Forest Litter As an Alternative Cooking Fuel”. Nepal Journal of Science and Technology 19, no. 2 (October 10, 2021): 68–74. Accessed February 4, 2025. https://nepjol.info./index.php/NJST/article/view/39433.