Villanueva Ramos AL, Lanazca Salinas SS, Alvarado Silva CA, Bedregal León AE. Impact of the implementation of electronic payment methods on sales in local markets in the Villa El Salvador district, 2024-2025. LACCEI [Internet]. 2025 Dec. 12 [cited 2026 July 4];2(13). Available from: https://proceedings.laccei.org/index.php/laccei/article/view/4923