Sukirno, S., M. Tufail, K. Rasool, and A. Aldawood. “Palm Weevil Diversity in Indonesia: Description of Phenotypic Variability in Asiatic Palm Weevil, Rhynchophorus Vulneratus (Coleoptera: Curculionidae)”. Journal of the Entomological Research Society, Vol. 20, no. 3, Nov. 2018, pp. 01-22, http://www.entomol.org/journal/index.php/JERS/article/view/1280.