Meesook, Laddawon. “Effect of Combined Application of Digested Slurry with Nitrogen Fertilizer on Corn Yield”. Thai Agricultural Research Journal 1, no. 1 (January 1, 1983): 43–46. accessed October 1, 2026. https://li01.tci-thaijo.org/index.php/thaiagriculturalresearch/article/view/245708.