Siti Nabila Rasida, Anisah HU. The Influence of Promotion and Product Quality on Competitive Advantage: Study on CV. Putri Bungsu. oaijss [Internet]. 2023Nov.30 [cited 2024Dec.22];7(1):1366-74. Available from: https://journalsocialsciences.com/index.php/oaijss/article/view/215