1.
Utami SW, Tarigan RAP, Widianingsih B. Characterization of Micronutrients and Heavy Metal Content in Organic Fertilizer Made From Fly Ash and Organic Waste. j Trop. Soils [Internet]. 2019Jan.2 [cited 2025Jul.27];24(1):11-6. Available from: https://journal.unila.ac.id/index.php/tropicalsoil/article/view/340