Manhali is a free, open source course management system that can be also used as a classical CMS (Content Management System) or a tutorial management system for how-to websites.
Manhali is installable, multi-language and secure. Licensed under the GNU-GPL 3 and written in PHP/MySQL

More infomation : http://sourceforge.net/projects/manhali

Download : https://sourceforge.net/projects/manhali/files

Example : http://www.infonuls.com