Waraporn Tajan. 1992. An experimental study of the use of Thai text in parallel with English text in teaching English reading comprehension. Faculty of Graduate studies, Mahidol University;
Waraporn Tajan. (1992) An experimental study of the use of Thai text in parallel with English text in teaching English reading comprehension . Mahidol University/Bangkok.
Waraporn Tajan. An experimental study of the use of Thai text in parallel with English text in teaching English reading comprehension. . Bangkok:Mahidol University, 1992.
Waraporn Tajan. (1992) An experimental study of the use of Thai text in parallel with English text in teaching English reading comprehension . Mahidol University/Bangkok.