Pangaribuan, Christian Haposan, Ella Intan Aggraeni, and Martinus Fieser Sitinjak , trans. 2018. “EXPLORING THE FIVE-FACTOR PERSONALITY TRAITS ON THE USEFULNESS AND EASINESS PERCEPTIONS OF USING INSTAGRAM’S PAID PROMOTION”. Journal of Business And Entrepreneurship 6 (2): 46-57. https://ojs.sampoernauniversity.ac.id/index.php/JOBE/article/view/47.