Pangaribuan, Christian Haposan, et al. , translators. “EXPLORING THE FIVE-FACTOR PERSONALITY TRAITS ON THE USEFULNESS AND EASINESS PERCEPTIONS OF USING INSTAGRAM’S PAID PROMOTION”. Journal of Business And Entrepreneurship, vol. 6, no. 2, Nov. 2018, pp. 46-57, https://ojs.sampoernauniversity.ac.id/index.php/JOBE/article/view/47.