Nurdiansyah, H. “The Effect of Promotion and Product Feature on Customer Loyalty : Study At One of Knitting Companies in Bandung City”. Jurnal Computech &Amp; Bisnis (e-Journal), vol. 15, no. 2, Dec. 2021, pp. 161-7, https://jurnal.stmik-mi.ac.id/index.php/jcb/article/view/63.