Alya Zulfa Cahyani, Elvina, Agus Rahmat Hermawanto, and Novrihan Leily Nasution. “Analysis Price and Promotion of Customer Loyalty in Modern Retail Shopping Centers in The Pandemic Time Covid-19 Through The Purchase Decision Strategy As Moderation”. International Journal of Business, Technology and Organizational Behavior (IJBTOB) 1, no. 1 (February 22, 2021): 35–46. Accessed September 8, 2024. https://ijbtob.org/index.php/ijbtob/article/view/5.