Abugharsa, Issa. A., et al. “Determine and Control the Powdery Mildew Causal on Cucumber and Squash Plants in El-Wasta Green Mountain”. Al-Mukhtar Journal of Sciences, vol. 17, no. 1, Mar. 2008, pp. 62-72, doi:10.54172/mjsc.v17i1.835.