books.google.com - Gateway to Chinese Language is a comprehensive package of course material for first-year Mandarin Chinese. Each lesson contains an array of approaches, and the volume includes interactive tutorial software....http://books.google.com/books/about/%E6%BC%A2%E8%AA%9E%E5%85%A5%E9%96%80.html?id=18ByRWP_1UQC&utm_source=gb-gplus-share漢語入門
