It is an open source book so you can
download the E-book for free from the following URL. Feel free to
distribute the link to your colleagues and students. Also, you can place
a link to the book on your websites so that anyone can access the
information for the book.

http://www.aupress.ca/index.php/books/120155

Dr. Mohamed Ally is Director and Professorat the Centre for Distance Education, Athabasca University
Canada