Hussin, A., Abdul Ghani, A., Ismail, K., Fauzi, R., Richard, D., & S, G. (2008). The geology and geomorphology of Pulau Jarak, Pulau Sembilan and Pulau Perak. Malaysian Journal of Science, 27(3), 1–6. Retrieved from https://jpmm.um.edu.my/index.php/MJS/article/view/8737