Shamshiry, E., Nadi, B., Bin Mokhtar, M., Komoo, I., Saadiah Hashim, H., & Yahaya, N. (2011). Impact of Landfill Leachate on Water Quality in Langkawi Island Using Management of Environmental System. Asian Journal of Chemistry, 24(5), 1919–1923. Retrieved from https://asianpubs.org/index.php/ajchem/article/view/8912