-Yang Lee, Chow, Han -Heng Yap, and Ngo- Long Chong. “Insecticide Toxicity on the Adult German ceki’oach, Blattella Germanica (L.) (Dictyoptera: Blattellidae)”. Malaysian Journal of Science 17, no. 1 (April 25, 1996): 1–9. Accessed December 23, 2024. http://ojie.um.edu.my/index.php/MJS/article/view/9400.