Concentration levels of trace metal ions in estuarine and coastal waters of selected rivers of Davao City / by Tessie Sucaldito-Diansay.–
A study of Cu, MN, Fe, and Zn metal concentrations in the sediments of Barangay Matina Aplaya coastal areas
Three-month monitoring on the determination of Cu, Fe, Mn, Pb, and Zn levels in sediments of Lasang River