Rungsichol, Nikool. “Long-Term Use of Compost for Soil Improvement and Increased Rice Yield in Irrigated Areas”. Thai Agricultural Research Journal 3, no. 3 (September 1, 1985): 149–156. accessed September 15, 2026. https://li01.tci-thaijo.org/index.php/thaiagriculturalresearch/article/view/245392.