AL-Shammary, Ahmed J. M. “Laboratory Study to Limitation Degree-Days Which Prerequisite for Stages Development of Waterhyacinth Chevroune Weevil Neochetina Bruchi (Hustache) Coleoptera: Curculiondeae and the Lowest Developmental Threshold”. Journal of Biotechnology Research Center, vol. 8, no. 2, June 2014, pp. 90-94, doi:10.24126/jobrc.2014.8.2.342.