L.L, Y., Eh Rak, A. and A.A, L. 2017. Performance of Rambutan Seed Extracts as Iron and Manganese Removal in Drinking Groundwater well in Tanah Merah, Kelantan. Journal of Tropical Resources and Sustainable Science (JTRSS) . 5, 2 (Dec. 2017), 79–82. DOI:https://doi.org/10.47253/jtrss.v5i2.596.