Afriliyanti, Rizki, Sri Yusnaini, Agus Karyanto, Dwi Hapsoro, Ainin Niswati, and Muhajir Utomo. “Effect of Long-Term Tillage and Nitrogen Fertilization Residue on Soil Biochemical Properties and Cowpea Yield”. JOURNAL OF TROPICAL SOILS 26, no. 3 (September 11, 2021): 141–147. Accessed July 19, 2025. https://journal.unila.ac.id/index.php/tropicalsoil/article/view/469.