Yaacub, U., & Kasmin, H. (2022). Groundwater Quality Assessment for Drinking Purposes Using Multivariate Analysis and Surfer in Seremban, Negeri Sembilan. Journal of Advancement in Environmental Solution and Resource Recovery, 2(2), 75-83. https://publisher.uthm.edu.my/ojs/index.php/jaesrr/article/view/12410