Interest rates on credit sales in Pamplona, a usurious business*. FACE: Revista de la Facultad de Ciencias Económicas y Empresariales, [S. l.], v. 17, n. 2, p. 120–129, 2017. DOI: 10.24054/face.v17i2.541. Disponível em: https://ojs.unipamplona.edu.co/index.php/face/article/view/541. Acesso em: 16 oct. 2025.