Bonartdo Samuel Gultom, M. R. Rianto, Choiroel Woestho, Eri Bukhari, and Wirawan Widjanarko. “Pengaruh Brand Customer Experience Dan Kualitas Pelayana Terhadap Loyalitas Pelanggan Melalui Kepuasan Pelanggan Central Fitness Harapan Indah”. IJESM Indonesian Journal of Economics and Strategic Management, vol. 2, no. 1, Mar. 2024, pp. 631-44, https://journal.drafpublisher.com/index.php/ijesm/article/view/84.