SUMIANTO, Djoko. UJI EFEKTIVITAS PUPUK NPK (12-12-17-2) MEREK DAUN SAWIT PADA BUDIDAYA BAWANG MERAH. Jurnal Ilmu-Ilmu Pertanian, [S. l.], v. 27, n. 1, p. 46–53, 2020. DOI: 10.55259/jiip.v27i1.77. Disponível em: https://jiip.polbangtanyoma.ac.id/index.php/jiip/article/view/77. Acesso em: 4 apr. 2025.