THE EFFECT OF SERVICE QUALITY, PRICE, AND PROMOTION ON CUSTOMER SATISFACTION AT OPTIK GAGAS UNGARAN. Jurnal Comparative: Ekonomi dan Bisnis, [S. l.], v. 8, n. 2, p. 148–163, 2026. DOI: 10.31000/6581dt55. Disponível em: https://jurnal.umt.ac.id/index.php/jceb/article/view/16335. Acesso em: 27 oct. 2026.