Meesook, L. (1983) “Effect of Combined Application of Digested Slurry with Nitrogen Fertilizer on Corn Yield ”, Thai Agricultural Research Journal, 1(1), pp. 43–46. available at: https://li01.tci-thaijo.org/index.php/thaiagriculturalresearch/article/view/245708 (accessed: 1 October 2026).