“The Use of Ionic Pumping Method for Improving the Performance of Vacuum Micro-Electronic Valves: The Use of Ionic Pumping Method for Improving the Performance of Vacuum Micro-Electronic Valves”. Journal of the College of Education for Women, vol. 21, no. 2, Feb. 2019, https://jcoeduw.uobaghdad.edu.iq/index.php/journal/article/view/299.