“Membedah Peran Social Media Marketing Activity (SMMA) dan Consumer-Brand Engagement terhadap Brand Loyalty Produk Kosmetik Lokal Legendaris”, Prof. Bus. J., vol. 4, no. 1, hlm. 66–79, Jul 2026, Diakses: 23 Juli 2026. [Daring]. Tersedia pada: https://jurnal.usp.ac.id/index.php/professional-bussiness-journal/article/view/251