Institut of Mathematics, Rzeszow University

Professor of Mathematics, Ataturk University, ERZURUM-TURKIYE

University of Sharjah

Professor of Mathematics, Universiti Malaysia Terengganu

Professor, Department of Mathematics, University of Ilorin, Ilorin

Full Professor, King Faisal University, Saudi Arabia

Brawijaya University

Government Engineering College, Bikaner

Berhampur University

Assistant Professor of Mathematics, Payame Noor University, Iran.