Nutrient Cycling Index in Relation to Organic Matter and Soil Respiration of Rehabilitated Mine Sites in Kelian, East Kalimantan. j Trop. Soils [Internet]. 2019 May 15 [cited 2025 Dec. 25];16(3):219-23. Available from: https://journal.unila.ac.id/index.php/tropicalsoil/article/view/302