Damanik, Michael Joy Rade, and Nur Aisyah. “The Effect of Product Innovation and Entrepreneurial Marketing on SME Competitive Advantage”. Golden Ratio of Data in Summary 4, no. 2 (October 30, 2024): 1010–1016. Accessed December 21, 2025. https://goldenratio.id/index.php/grdis/article/view/739.