M. S. Al-Buriahi - Sakarya University
Sultan Alomairy - Taif University
D. K. Gaikwad - Department of Physics, ACS College, Dharangaon, India
H. H. Hegazy - King Khalid University
C. Mutuwong - Ubon Ratchathani University
Y. S. Rammah - Menoufia University