Siew-Moi, Phang, Wong, Ching-Lee, Lim, Phaik-Eem, Yeong, Hui-Yin, and Chan, Cheong-Xin. 2005. “Seaweed Diversity of the Langkawi Islands With Emphasis on the Northeastern Region”. Malaysian Journal of Science 24 (April):77-94. https://ejournal.um.edu.my/index.php/MJS/article/view/8823.