Suparno A. The Effectiveness of AMF Inoculum to Enhance The Potency of Papuan Crandallite Phosphate Rock and The Growth of Cocoa Seedling. j Trop. Soils [Internet]. 2009Sep.1 [cited 2025Jul.31];14(3):261-7. Available from: https://journal.unila.ac.id/index.php/tropicalsoil/article/view/94