Himawati, U., and S. Prajanti. “PENGARUH KUALITAS LAYANAN, KEPUASAN PELANGGAN DAN BUDAYA GUSJIGANG TERHADAP LOYALITAS PELANGGAN”. Economic Education Analysis Journal, Vol. 6, no. 3, Jan. 2018, pp. 865-76, https://journal.unnes.ac.id/sju/eeaj/article/view/20332.