Ruzaly, Efdi. 2020. “PENGARUHPEMBERIAN SLUDGE TERHADAP PERTUMBUHAN BIBIT STUMP MATA TIDUR TANAMAN KARET (Hevea Brasilensis) DI POLYBAG”. Agroprimatech 3 (1):68-77. https://jurnal.unprimdn.ac.id/index.php/Agroprimatech/article/view/794.