Jongruaysup, Somphob. “Effect of Rates of Phosphate, Potassium and Lime on Yield of sugarcane on Sandy Loam soil in the Northeast”. Thai Agricultural Research Journal 16, no. 3 (December 22, 1998): 203–211. accessed September 30, 2026. https://li01.tci-thaijo.org/index.php/thaiagriculturalresearch/article/view/236385.