Zulkifly, Shahrizim, and Amir Feisal Merican. “Some Lichens of North Eastern Langkawi and Gunung Machincang, Langkawi Islands”. Malaysian Journal of Science 24 (April 28, 2005): 103–110. Accessed November 15, 2024. https://malindojournal.um.edu.my/index.php/MJS/article/view/8825.