S. Djuniwati, A. Hartono, and L. T. Indriyati, “The Effect of Organic Matter (Pueraria javanica) and Rock Phosphate on the Growth and P-uptake of Corn Plant (Zea mays) in Andisol Pasir Saronggae”, J. Il. Tan. Lingk., vol. 5, no. 1, pp. 17–22, Apr. 2003, doi: 10.29244/jitl.5.1.17-22.