Mulia, Hari, and Ajeng Erna Safitri. “Optimizations of Digital Marketing in Increasing Competitive Advantage: Case Study of Elzatta Hijab Garut”. Golden Ratio of Data in Summary 4, no. 1 (April 25, 2024): 144–151. Accessed July 18, 2026. https://www.goldenratio.id/index.php/grdis/article/view/1084.