Akbar, Mohamad, Ermy Wijaya, and Kamelia Astuty. 2024. “The Influence of Digital Marketing, Social Media, Promotion and Influencers on Purchasing Decisions for Iphone Products”. International Journal on Economics, Finance and Sustainable Development 6 (12), 324-35. https://journals.researchparks.org/index.php/IJEFSD/article/view/5340.