Volume 16, Issue 59, April 2021, Pages 442-462
Tarek Saad Alhenawy; AHMED Elsayed Rashiedy; Shaban Taha Ibrahim
Volume 16, Issue 59, April 2021, Pages 463-478
Reem Farouq Hassan Alsabban
Volume 16, Issue 59, April 2021, Pages 479-495
Heba Fathi Shourrab; Mohammed Hassan Atwa; Mervat Abd El-Aziz Nasr