Tarigan, E. D. S., T. . Parulian, H. . Sabrina, P. . Marbun, and A. M. U. Nasution. “Impact of Demographic Segmentation and Psychographic Segmentation on Purchase Decisions of K Beauty Products”. Journal of Management Science (JMAS), vol. 6, no. 1, Jan. 2023, pp. 1-4, https://exsys.iocspublisher.org/index.php/JMAS/article/view/171.