M. Syafii, Dewi Ratna Sari and Yola Anggia 2024. SME Development through Competitive Advantage on the Improvement of SME Marketing Performance in Medan City. Journal of Science and Education (JSE). 5, 1 (Nov. 2024), 289-304. DOI:https://doi.org/10.58905/jse.v5i1.428.