Purnomo E. Response of Maize Grown on Overburden Soil in a Coal Mining Area without Top Soil to Various Compost Sources. j Trop. Soils [Internet]. 2016Apr.21 [cited 2025Sep.1];20(2):95-9. Available from: https://journal.unila.ac.id/index.php/tropicalsoil/article/view/225