Nabilla, Amelia, and Audita Nuvriasari. “Pengaruh Product Involvement, Kualitas Produk, Dan Citra Merek Terhadap Loyalitas Merek Skincare ”Herborist””. Jurnal Pendidikan Tambusai 7, no. 3 (November 23, 2023): 26488–26495. Accessed May 12, 2025. http://jptam.org/index.php/jptam/article/view/10872.