©2013 National Research Council of Thailand
Prapai Klinkhachorn. 1993. A survey of problems and practices of teaching English in large classes. Faculty of Graduate Studies, Mahidol University;
Prapai Klinkhachorn. (1993) A survey of problems and practices of teaching English in large classes . Mahidol University/Bangkok.
Prapai Klinkhachorn. A survey of problems and practices of teaching English in large classes. . Bangkok:Mahidol University, 1993.
Prapai Klinkhachorn. (1993) A survey of problems and practices of teaching English in large classes . Mahidol University/Bangkok.