TELAUMBANUA, T. S.; PURNOMO, H.; KALOETI, A. K. The Impact of Online Advertising Through Instagram Social Media on Product Purchase Decisions in Yogyakarta. EQUILIBRIUM - Jurnal Bisnis dan Akuntansi, [S. l.], v. 15, n. 2, p. 106–121, 2021. DOI: 10.61179/ejba.v15i2.686. Disponível em: http://journal.ukrim.ac.id/index.php/jem/article/view/686. Acesso em: 6 nov. 2025.