Nur Mustaqiman, Aulia, Ruslan Wirosoedarmo, Bambang Suharto, Alvian Ilham, and Hartis Suwito. “PENGARUH BIOCHAR SEKAM PADI DAN TONGKOL JAGUNG TERHADAP PENURUNAN LOGAM Fe”. Envirotek : Jurnal Ilmiah Teknik Lingkungan 13, no. 2 (October 29, 2021): 1–9. Accessed November 21, 2024. https://envirotek.upnjatim.ac.id/index.php/envirotek/article/view/100.