Wantana Ampaipipatkul. 2004. A study of content and training methods for a five-day trainer course. Field of Study Adult and Continuing Education, Mahidol University;
Wantana Ampaipipatkul. (2004) A study of content and training methods for a five-day trainer course . Mahidol University/Bangkok.
Wantana Ampaipipatkul. A study of content and training methods for a five-day trainer course. . Bangkok:Mahidol University, 2004.
Wantana Ampaipipatkul. (2004) A study of content and training methods for a five-day trainer course . Mahidol University/Bangkok.