M. R. A. Naguit, J. Aquin, F. P. Tabiliran, and L. J. . Raymundo, “Lead and Zinc Concentrations in the Venus Clam, Paphia Textile (Gmelin) in Soft- Bottom Communities of Katipunan and Roxas, Zamboanga Del Norte: An Indicator of Heavy Metal Contamination ”, Silliman Journal, vol. 45, no. 2, Dec. 2022.