Author(s) : Fakultas Ekonomi, Program Studi Manajemen, Universitas Kristen Petra - Andreani, Fransisca - Nugroho, Agustinus - Kartika, Endo Wijaya - Kaihatu. Thomas Stefanus - Raf, Mulyadi - Narsa, I Made - Han, Sia Tjun - Pertiwi, Tri Kartika - Pratama, Ferry Madi Ika - Jatmiko, Rohmat Dwi - Andharini, Sri Nastiti - Yaqoub, Amak M. - Miqdad, Muhammad - Sumargo, Yesslyn - Chen, Lie - Meilani, Yohana F. Cahya Palupi - Simanjutak, Sahat -