Authors
Hamid Reza Moradi
Young Researchers and Elite Club, Mashhad Branch, Islamic Azad University, Mashhad
Mohsen Erfanian Omidvar
Department of Mathematics, Mashhad Branch, Islamic Azad University
Silvestru Sever Dragomir
Mathematics, College of Engineering and Science, Victoria University, Australia
Mohammad Saeed Khan
Department of Mathematics & Statistics, Sultan Qaboos University, Oman
