Soekotjo, Sundari, Setyani Dwi Lestari, Koen Hendrawan, Nora Andira Brabo, and Heni Iswati. “Powering Brand Success: The Impact of Firm-Created and User-Generated Content on Equity, Attitude, and Purchase Intentions ”. Golden Ratio of Marketing and Applied Psychology of Business 5, no. 1 (January 19, 2025): 185–194. Accessed May 21, 2026. https://www.goldenratio.id/index.php/grmapb/article/view/81.