Noramly, G., bin Hussin, A., V. C, C., & Siew Moi, P. (2005). The Scientific, Social, Environmental and Economic Value of N.E. Langkawi: An Overview of the Present Status. Malaysian Journal of Science, 24, 219–235. Retrieved from https://samudera.um.edu.my/index.php/MJS/article/view/8848