HartatikW., IdrisK., SabihamS., DjuniwatiS., & AdiningsihJ. S. (2004). Increasing P Retention in the Peat Column Amended with Mineral Soil and Some Rock Phosphates. Jurnal Ilmu Tanah Dan Lingkungan, 6(1), 22-30. https://doi.org/10.29244/jitl.6.1.22-30