“Membedah Peran Social Media Marketing Activity (SMMA) dan Consumer-Brand Engagement terhadap Brand Loyalty Produk Kosmetik Lokal Legendaris” (2026) Professional Business Journal, 4(1), hlm. 66–79. Tersedia pada: https://jurnal.usp.ac.id/index.php/professional-bussiness-journal/article/view/251 (Diakses: 23 Juli 2026).