PERALTA, Genandrialene L.; 						SORIANO, Roberto S.; 						DIZON, Cornelio Q..
 Pollution Sources and Water Quality Assessment in Metro Manila and Laguna Lake Basins.
<strong>Philippine Engineering Journal</strong>, [S.l.], v. 14, n. 1, sep. 2021.
ISSN 2718-9287.
Available at: &lt;<a href="https://www.journals.upd.edu.ph/index.php/pej/article/view/8097" target="_new">https://www.journals.upd.edu.ph/index.php/pej/article/view/8097</a>&gt;. Date accessed: 04 sep. 2025.