Welcome to Volume 12, Number 1 of TOJDE

From Editor

TOJDE is appeared on your screen now as Volume 12, Number: 1. In this issue it is published 4 notes for Editor, 13 articles, 2 book reviews. And this time, 34 authors from 11 different countries are placed. These published articles are from Cayman Islands, Germany, Greece, India, Iran, Malaysia, Pakistan, Turkey, USA and Zimbabwe.