Ohiwal, Morgan, Rahayu Widyastuti, and Supiandi Sabiham. 2017. “Functional Microbial Population on Oil Palm Rhizosphere in Riau Peatlands: Populasi Mikrob Fungsional Pada Rhizosfer Kelapa Sawit Di Lahan Gambut Riau”. Jurnal Ilmu Tanah Dan Lingkungan 19 (2), 74-80. https://doi.org/10.29244/jitl.19.2.74-80.