Yudianto, Ruaman. “The Effect of Brands and Advertising on the Purchase of Pepsodent Toothpaste Products in Pagar Alam City ”. Jurnal Ekonomi, Manajemen, Akuntansi Dan Keuangan, vol. 2, no. 4, Oct. 2021, pp. 555–565, https://penerbitadm.pubmedia.id/index.php/jurnalemak/article/view/259.