Khermkhun, Jeeranun, Peerachai Kullachai, Duangkamol Panrosthip Thunmathiwat, Kallayanee Kullachai, and Pakapon Poythaisong. “Development of Ready-Mix Potting Soil Products and Elephant Dung Fertilizer for Income-Generating Activities of the Phawa Sub-District Agroforestry Network, Chanthaburi Province”. Area Based Development Research Journal 14, no. 4 (December 31, 2022): 283–296. accessed August 28, 2026. https://so01.tci-thaijo.org/index.php/abcjournal/article/view/262645.