Affiliation: | 1. School of Hotel and Tourism Management , Dongguk University , 707 Seokjang-Dong, Gyeongju-si , Gyeongsangbuk-do , 780-714 , Republic of Korea;2. Hotel and Tourism Management , Graduate School of Dongguk University , 263 Pil-Dong, Jung-Gu, Seoul , 100-715 , Republic of Korea |