Arunrat Puangtipakorn. 1989. A comparative study of levels of questioning : their effects on the reading achievement of M.4 students. , Mahidol University;
Arunrat Puangtipakorn. (1989) A comparative study of levels of questioning : their effects on the reading achievement of M.4 students . Mahidol University/Bangkok.
Arunrat Puangtipakorn. A comparative study of levels of questioning : their effects on the reading achievement of M.4 students. . Bangkok:Mahidol University, 1989.
Arunrat Puangtipakorn. (1989) A comparative study of levels of questioning : their effects on the reading achievement of M.4 students . Mahidol University/Bangkok.