Phang, S.-M., P.-E. Lim, J. L. S. Ooi, H.-Y. Yeong, W.-S. Ng, and F. C. Küpper. “Marine Algae of Perak Island, Jarak Island and the Sembilan Group of Islands in the Straits of Malacca”. Malaysian Journal of Science, vol. 27, no. 3, Dec. 2008, pp. 47-60, https://juku.um.edu.my/index.php/MJS/article/view/7708.