Febrianti, F., & Asridawati, S. (2019). The Role of Charcoal from Oil Palm Trunks for Improving Macro Nutrients Content of Corn (Zea mays, L.).: Peranan Arang Batang Kelapa Sawit dalam Peningkatan Kadar Hara Makro Tanaman Jagung (Zea mays, L.). JURNAL AGRONOMI TANAMAN TROPIKA (JUATIKA), 1(2), 67-72. https://doi.org/10.36378/juatika.v1i2.159