“ASSESSMENT OF WATER QUALITY AND HEAVY METAL CONTAMINATION (ALUMINUM, IRON, COPPER, CADMIUM, LEAD, AND ZINC) IN TERENGGANU, SETIU AND BESUT RIVERS, MALAYSIA”. 2026. Jurnal Teknologi (Sciences & Engineering) 88 (4): 761-72. https://doi.org/10.11113/jurnalteknologi.v88.24719.