Asmarhansyah . Improving Soil Properties and Yield of Corn (Zea Mays L.) by Application of Organic Amendment on Abandoned Tin-Mining Land in Bangka Island. j Trop. Soils [Internet]. 2017Feb.27 [cited 2025Jul.31];21(3):141-5. Available from: https://journal.unila.ac.id/index.php/tropicalsoil/article/view/251