THE ASSESSMENT OF THE VARIATION OF PHYSICO-CHEMICAL SOURCES FOR DRINKING WATER QUALITY USING CHEMOMETRICS: A CASE STUDY AT WATER TREATMENT PLANTS IN KLANG VALLEY. J. Teknol. [Internet]. 2016 Oct. 31 [cited 2025 Jan. 16];78(11). Available from: https://journals.utm.my/jurnalteknologi/article/view/4170