“Analisis Kandungan Karbon Tanah Organik Di Taman Botani Bukit Pelangi, Sangatta Kabupaten Kutai Timur”. Jurnal Pertanian Terpadu 4, no. 1 (June 10, 2016): 1–10. Accessed September 3, 2026. https://ojs.mine-cloud.my.id/jpt/article/view/34.