The Selection of an E-Wallet by Mathematics Students at the University of North Sumatra Using the Analytical Hierarchy Process (AHP) Method. Journal of Research in Mathematics Trends and Technology, [S. l.], v. 5, n. 2, p. 19–28, 2023. DOI: 10.32734/jormtt.v5i2.16873. Disponível em: https://idjpcr.usu.ac.id/jormtt/article/view/16873. Acesso em: 4 feb. 2026.