Hari Gunawan, Ingrid Ovie Yosephine, & Muhammad Rizky Andrian. (2026). Chemical Properties of Acid Sulfate Soils Across Sulfuric Horizon Depths and Their Effects on Oil Palm Root Development. Jurnal Riset Perkebunan, 7(1), 1–8. https://doi.org/10.25077/jrp.7.1.1-8.2026