Istiqomah, F.; Noviarini, D. .; Berutu, M. B. Pengaruh Karakteristik Social Media Marketing Activities Dan Perceived Usefulness Terhadap Customer Engagement Instagram Bina Taruna Wiratama Academy Jakarta. JIEMI 2026, 2 (2), 4352-4376. https://doi.org/10.63822/pygchs07.