Volume 32, Issue 1-A, June 2021, Pages 37-45
Badr Awad Elsayed; Essam A Gomaa; Mgdy M Awad; Ammar A Abdallah
Volume 30, Issue 1-A (Chemistry), June 2019, Pages 35-45
badr awad elsayed; walied mohamed; hoda galal; hassan abdelbary; mahmoud Ahmed