Gebi Hiskia, Akhmad Sopian, and Mahdalena. “THE EFFECT OF UREA, KCl, SP-36 FERTILIZER ON PRODUCTION AT SOME AGE OF NATURAL RUBBER PLANT (Hevea Brasiliensis Mull.Arg): PENGARUH PUPUK UREA,KCl,SP-36 TERHADAP PRODUKSI PADA BEBERAPA UMUR TANAMAN KARET ALAM (Hevea Brasiliensis Mull.Arg) ”. Agrifarm: Jurnal Ilmu Pertanian 11, no. 1 (July 30, 2022): 55–60. Accessed July 3, 2024. https://journal.uwgm.ac.id/agrifarm/article/view/1510.