Faridatun Nisa, Anisah HU. The Role of Product Quality and Product Innovation on Competitive Advantage: A Study on Nutrition Clubs in Banjarmasin, Indonesia. oaijss [Internet]. 2023Jul.27 [cited 2024Oct.18];6(6):1167-75. Available from: https://journalsocialsciences.com/index.php/oaijss/article/view/187