Jnawali, Dipak, Raywadee Roachanakanan, and Kulvadee Kansuntisukmongkol. 2017. “Application of Forest Gap Model for Sal (Shorea Robusta) Forest Succession”. Environment and Natural Resources Journal 6 (2). Nakhon Pathom, Thailand. https://ph02.tci-thaijo.org/index.php/ennrj/article/view/83581.