Santhanaraju Vairappan, Charles, and Phang Siew-Moi. 2005. “Morphology and Halochamigrene Metabolite Content of Laurencia Majuscula (Rhodomelaceae, Ceramiales) from the Spratly Islands”. Malaysian Journal of Science 24 (2):29-36. http://jummec.um.edu.my/index.php/MJS/article/view/8304.