Welcome to Volume 13, Number 4 of TOJDE

From the Editor

Welcome to the Volume 13 Number: 4 of TOJDE! In this issue, one book review and 26 articles of 49 authors from 15 different countries around the world have been published. These published articles are from, Bahrain, Brazil, Greece, India, Iran, Lithuania, Malaysia, Nigeria, Saudi Arabia, South Korea, South Africa, Thailand, Turkey, USA and Zimbabwe.