SAHPUTRA, Rachmat. ANALISIS KANDUNGAN KALSIUM (Ca) PADA TANAMAN PORANG (Amorphophallus Oncophyllus). QUANTUM: Jurnal Pembelajaran IPA dan Aplikasinya, [S. l.], v. 5, n. 1, p. 13–20, 2025. DOI: 10.46368/qjpia.v5i1.3994. Disponível em: https://jurnalstkipmelawi.ac.id/index.php/QJIPI/article/view/3994. Acesso em: 27 jul. 2025.