Volume 12, Issue 1, 2018, Pages 33-37
Hany Mohamed Heikal; Safaa M. Abo-Taka
Volume 8, Issue 2, December 2014, Pages 45-48
Safaa M. Abo-Taka; H. M. Heikal; Samah Zakaria
Volume 8, Issue 2, December 2014, Pages 49-56
Safaa M. Abo-Taka; M. A. Sweelam; H. M. Heikal; Imam H. Walash