SUJIMAN, Sujiman; HARIYADI, Sundek. Trends Of Elements Fe And Mn In Coal Mining Waste At Tenggarong District. Kutai Kartanegara East Kalimantan. International Journal of Environmental, Sustainability, and Social Science, [S. l.], v. 3, n. 2, p. 397–403, 2022. DOI: 10.38142/ijesss.v3i2.229. Disponível em: https://staging.journalkeberlanjutan.com/index.php/ijesss/article/view/229. Acesso em: 6 jun. 2026.