Pages 87-94
10.24271/psr.17
Hastyar Hama Rashid Najmuldeen
Pages 95-101
10.24271/psr.18
Yadgar Sirwan Abdulrahman
Pages 102-106
10.24271/psr.19
Rzgar Sirwan; muzhir al-ani
Pages 107-113
10.24271/psr.20
Yadgar Mahmood; Halgurd Nasraden Hassan; Masood Saber Mohammed