Ramadhan, Akbar Syam, Rama Adrian, Almunazza Kani Chaniago, Faiq Raihan Zaky Siregar, Ridho Saputra, and Chalisa Mahany. “EVALUASI KESUBURAN TANAH DI KEBUN KOPI DESA GIRSANG SIPANGAN BOLON, SIMALUNGUN”. Fruitset Sains : Jurnal Pertanian Agroteknologi 13, no. 2 (June 30, 2025): 188-167. Accessed May 9, 2026. https://iocscience.org/ejournal/index.php/Fruitset/article/view/6380.