Putri Rizkika Ariza, et al. “ANALISIS PENERAPAN STRATEGI PEMASARAN (MARKETING MIX) PADA KAFE KEBOON KOPI BATAM”. Journal of Innovation Research and Knowledge, vol. 5, no. 7, Dec. 2025, pp. 7773-86, https://mail.bajangjournal.com/index.php/JIRK/article/view/11814.