Welcome to the Volume 17, Number 4 of TOJDE

From The Editor

Dear TOJDE Readers, welcome to the Volume 17, Number 4 of TOJDE. There are 14 articles and 2 book reviews in the last issue of the year 2016. The articles are written by 37 authors from 14 different countries. These countries are Canada, Colombia, Egypt, Indonesia, Iran, Kenya, Philippines, Saudi Arabia, Scotland, Spain, Tunisia, Turkey, United Kingdom and USA.