Sigar, Abner, Yefta Susetyo, Rosita Mustikasari, Bistok Simanjuntak, Andree Setiawan, and Dina Banjarnahor. “Soil Carbon Stocks in Irrigated Paddy Fields, Rainfed Paddy Fields, and Upland Farms in the Upper Tuntang Sub-Watershed”. Jurnal Pertanian Terpadu 13, no. 2 (December 31, 2025): 255-270. Accessed November 10, 2026. https://www.ojs.stiperkutim.ac.id/index.php/jpt/article/view/673.