Computer Software
by Pannatorn Hmuanmani
1. Facebook
1.1. Youtube
1.1.1. Twitter
2. PowerPoint
2.1. Word
2.1.1. Excel
3. Microsoft Office
4. Google Chrome
4.1. Opera
4.1.1. Mozilla Firefox
1.1.1. Twitter
2.1.1. Excel
4.1.1. Mozilla Firefox