Milasari, Selvi. “Pengaruh Citra Merek, Kualitas Produk, Dan Kualitas Pelayanan Terhadap Loyalitas”. Jurnal Kompetitif Bisnis, vol. 1, no. 5, May 2021, p. 16, https://jkb.fisip.unila.ac.id/index.php/jkb/article/view/149.