SATRIA WICAKSONO, Noah Jonathan; SUTANTO, J.E. THE IMPACT OF PRODUCT VARIATION, PRODUCT QUALITY, AND SERVICE QUALITY ON PURCHASE DECISION OF KO-KOPIAN PRODUCTS. International Journal of Economics, Business and Accounting Research (IJEBAR), [S. l.], v. 6, n. 1, p. 570–577, 2022. DOI: 10.29040/ijebar.v6i1.4860. Disponível em: https://jurnal.stie-aas.ac.id/index.php/IJEBAR/article/view/4860. Acesso em: 12 jul. 2025.