1. How the Learning Takes Place
Click on the following buttons at the head of each page.
The "top" button on the first page of each chapter moves to the table of contens.
The "menu" button on each learning page moves to the first page of its chapter.
The "back" button moves to the previous page.
The "next" button moves to the next page.
2. About Real Player
- Visit above URL to download Player needed according to your environment.