International Business Management 10 ( 2 ): 159 - 165 , 2016
Le Quan and Ta Huy Hung
International Business Management 10 ( 4 ): 561 - 571 , 2016
International Business Management 9 ( 6 ): 1463 - 1473 , 2015
International Business Management 11 ( 6 ): 1180 - 1187 , 2017