Siahaan, Reny Yuliana, Jansen Silalahi, and Zulkifli Lubis. “Analysis of Heavy Metals in Shellfish in Tanjung Balai Waters”. Journal of Food and Pharmaceutical Sciences 10, no. 1 (March 26, 2022): 610-619. Accessed November 26, 2024. https://dev.journal.ugm.ac.id/v3/JFPS/article/view/3734.