Kaewnoo, Tipawan, Varis Khaenkhong, Srisuda Reuncharoen, and Patimaporn Jinjakam. “The Effect of Integrating Organic and Chemical Fertilizers on the Yield Enhancement of Arabica Coffee”. VRU Agricultural and Food Journal 4, no. 1 (June 1, 2025): 51–60. accessed September 13, 2025. https://li04.tci-thaijo.org/index.php/VRU_AFJ/article/view/7287.