Piyang, Tuanjai, and Rarin Khuawaraphan. “By-Product Synergy from Nipa Palm Frond Processing Waste Ban Laem Community, Trang Province”. Area Based Development Research Journal 11, no. 6 (December 19, 2019): 503–517. Accessed April 20, 2024. https://so01.tci-thaijo.org/index.php/abcjournal/article/view/214084.