Zaki Z, M., M. Ali N. A, A. A. S, Z. Patah M. F, H. H, M. Jamil I. K, and A. Bakar S. A. “Four Monoterpene Compounds: Repellency Evaluation Against Aedes Aegypti”. Malaysian Journal of Science, vol. 24, no. 1, Jan. 2005, pp. 225-8, http://mjs.um.edu.my/index.php/MJS/article/view/8982.