Saputra, Jamin, Risal Ardika, and Thomas Wijaya. “RESPON PERTUMBUHAN TANAMAN KARET (HEVEA BRASILIENSIS) BELUM MENGHASILKAN TERHADAP PEMBERIAN PUPUK MAJEMUK TABLET”. Jurnal Penelitian Karet 1, no. 1 (April 7, 2017): 49–58. Accessed January 2, 2025. https://ejournal.puslitkaret.co.id/index.php/jpk/article/view/304.