Aziz, Sandra Arifin, Maya Melati, and Elrisa Ramadhani. “The Study of Organic Fertilizers Application on Two Soybean Varieties in Organic Saturated Soil Culture”. Journal of Tropical Crop Science 3, no. 1 (February 1, 2016): 19–27. Accessed October 11, 2025. https://j-tropical-crops.com/index.php/agro/article/view/95.