M. Syafii, Dewi Ratna Sari, Yola Anggia. SME Development through Competitive Advantage on the Improvement of SME Marketing Performance in Medan City. J. Sci. Educ. [nternet]. 2024Nov.28 [cited 2026Oct.27];5(1):289-304. vailable from: https://jse.rezkimedia.org/index.php/jse/article/view/428