Piriya Pholphirul and Veera Bhatiasevi
International Business Management 6 ( 3 ): 356 - 368 , 2012
Pungpond Rukumnuaykit and Piriya Pholphirul
International Business Management 7 ( 5 ): 374 - 392 , 2013
Journal of Applied Sciences 14 ( 17 ): 1898 - 1908 , 2014