Homraruen, Wilasinee, and Wisakha Phoochinda. 2019. “Utilization of Durian Shell and Mangosteen Shell As Fuel Briquette and Fertilizer: A Case Study of Kaeng Hang Maeo District, Chanthaburi Province”. Ph.D. In Social Sciences Journal 9 (2):452-66. https://so05.tci-thaijo.org/index.php/phdssj/article/view/115886.