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Zulfisa Zulfisa, Rini Lestari. Penetapan Kadar Kalsium Pada Daun Krokot (Portulaca Oleracea L.) Secara Kompleksometri. JPS [Internet]. 2022 Oct. 10 [cited 2025 Jul. 7];6(1):01-7. Available from: https://www.journal.akfardwifarma.ac.id/index.php/jps/article/view/15