Thawatchai Traithip, Sunthorn Kohtbantau and Pairote Baojai
Pakistan Journal of Social Sciences 5 ( 9 ): 905 - 908 , 2008
Chanchainarong Songkasri, Sunthorn Kohtbantau and Pairote Baojai
Pakistan Journal of Social Sciences 6 ( 2 ): 60 - 65 , 2009
Sompong Senchai, Sunthorn Kohtbantau and Pairote Baojai
Pakistan Journal of Social Sciences 6 ( 2 ): 105 - 109 , 2009