Sahputra R. ANALISIS KANDUNGAN KALSIUM (Ca) PADA TANAMAN PORANG (Amorphophallus Oncophyllus). QJPIA [Internet]. 2025 Jul. 3 [cited 2025 Jul. 27];5(1):13-20. Available from: https://jurnalstkipmelawi.ac.id/index.php/QJIPI/article/view/3994