Welcome to Volume 9, Number 4 of TOJDE

From Editor

TOJDE is appeared on your screen now as Volume 9, Number: 4. This is the fourth and the last issue of the year 2008. In this issue it is published two notes for Editor, 13 articles, 2 reviews. And this time, 23 authors from seven different countries are placed. These published articles are from Bangladesh, India, Malaysia, Nigeria, Saudi Arabia, USA and Turkey.