Chumthong, Amornrat, Karistsapol Nooprom, Supakracha Apiratikorn, Kamonthip Nicomrat, and Rawee Chiarawipa. “Effects of Different Organic Fertilizers on Growth and Yield of Robusta Coffee Intercropped With Rubber Trees”. Songklanakarin Journal of Plant Science 10, no. 2 (December 25, 2023): 90–97. Accessed July 27, 2024. https://www.sjplantscience.com/index.php/ojs/article/view/98.