Djuniwati, S, H.B Pulunggono, and Suwarno . “The Effect of Organic Matter (Centrosema Pubescens) and Rock Phosphate Application on the Activity of Phosphatase and P Fraction of Latosol Soil in Darmaga, Bogor”. Jurnal Ilmu Tanah dan Lingkungan 9, no. 1 (April 1, 2007): 10–15. Accessed December 28, 2025. https://journal.ipb.ac.id/jtanah/article/view/2386.