Tegon-Mercado, M. F., & Bronce, R. A. (2018). Lead content of mackerel tuna (Euthynnus affinis) from fishing ports along Balayan Bay. International Research Journal on Innovations in Engineering, Science and Technology, 4, 40–42. Retrieved from https://ojs.batstate-u.edu.ph/index.php/IRJIEST/article/view/40