Nasution, Azlaini, and Renni Indriani. “Determination of Lead (Pb) in Patin Fish Oil (Pangasius Hypophthalmus) Using Atomic Absorption Spectrophotometry (AAS)”. JPK : Jurnal Proteksi Kesehatan 10, no. 1 (May 31, 2021): 1-5. Accessed May 3, 2024. https://jurnal.pkr.ac.id/index.php/JPK/article/view/314.