Chui Wei, Bong, and Lee, Choon Weng. “Microbial Abundance and Nutrient Concentration in Riverine and Coastal Waters of North-East Langkawi”. Malaysian Journal of Science 24 (April 28, 2005): 29–35. Accessed December 19, 2024. https://mjs.um.edu.my/index.php/MJS/article/view/8818.