GUMUCIO-ESCOBAR, Alejandro Andres. The incorporation of the QR payment system: an analysis of the impact on SMEs in Cochabamba, Bolivia. YUYAY: Estrategias, Metodologías & Didácticas Educativas, GYE-FLO, v. 2, n. 1, p. 178–202, 2023. DOI: 10.59343/yuyay.v2i1.41. Disponível em: https://jlacolectivo.com/revistas/index.php/YUYAY/article/view/41. Acesso em: 2 apr. 2026.