Bernardus Ardika Stefano, and Yuliawati. “ANALISIS DETERMINAN BRAND LOYALTY SINGKONG KEJU D9”. JRMSI - Jurnal Riset Manajemen Sains Indonesia, vol. 10, no. 2, Sept. 2019, pp. 247-6, https://journal.unj.ac.id/unj/index.php/jrmsi/article/view/12019.