Reza Sepahvand, Hojjat Vahdati and Elham Amini Pooya
International Business Management 10 ( 7 ): 1225 - 1231 , 2016
Mohammad Hakkak, Hojjat Vahdati and Afsaneh Sharifinasab
International Business Management 10 ( 10 ): 1799 - 1808 , 2016