Ahmed Ali MohsenAssistant Professor in University of Baghdad and Ministry of Education, Rusafa\1, Baghdad-IraqPotvrđena adresa e-pošte na r1.epedu.gov.iq
Ghada H. IbraheemAssistant Professor, University of Baghdad, College of Education for Pure Science - Ibn Al- HaithamPotvrđena adresa e-pošte na ihcoedu.uobaghdad.edu.iq
Ahmed M. Abdul hadiDepartment of mathematics ,university of BaghdadPotvrđena adresa e-pošte na sc.uobaghdad.edu.iq