Zaki Z, Mohd, Mohd Ali N. A, Ahmad A. S, Zoll. Patah M. F, Hassan H, Mohd Jamil I. K, and Abu Bakar S. A. 2005. “Four Monoterpene Compounds: Repellency Evaluation Against Aedes Aegypti”. Malaysian Journal of Science 24 (1):225-28. http://mojes.um.edu.my/index.php/MJS/article/view/8982.