“ANALISIS KANDUNGAN LOGAM BERAT PADA DAGING IKAN TENGADAK (Barbonymus Schwanenfeldii) DI DANAU SIAIS KABUPATEN TAPANULI SELATAN”. EINSTEIN (e-Journal) 11, no. 2 (June 28, 2023): 76–87. Accessed March 23, 2026. https://jurnal.unimed.ac.id/2012/index.php/einsten/article/view/37822.