Jantamenchai, M., T. Sukitprapanon, D. Tulaphitak, and P. Vityakon. 2022. “Application of Organic Residues of Different Qualities Affects Available Phosphorus in a Tropical Sandy Soil of Northeast Thailand”. Songklanakarin Journal of Plant Science 9 (1):24-31. https://www.sjplantscience.com/index.php/ojs/article/view/37.