Mathialagan, K. R. P. ., Mansor, H. E. ., Mardhiya, A. ., Kamal, Z. A., & Ali Khan, M. M. . (2018). Groundwater quality assessment of domestic shallow dug wells in parts of Tanah Merah district, Malaysia. Journal of Tropical Resources and Sustainable Science (JTRSS), 6(2), 62–67. https://doi.org/10.47253/jtrss.v6i2.562