Stevanus, Charlos Togi, Risal Ardika, and Jamin Saputra. “PENGARUH SISTEM OLAH TANAH DAN COVER CROP TERHADAP SIFAT FISIK TANAH DAN PERTUMBUHAN TANAMAN KARET”. Jurnal Penelitian Karet 35, no. 2 (January 4, 2018): 139–148. Accessed December 22, 2024. https://ejournal.puslitkaret.co.id/index.php/jpk/article/view/357.