Piñeros Rodríguez, C. A., L. M. Sierra Martinez, D. H. Peluffo Ordoñez, and J. A. Timana Peña. “Effort Estimation in Agile Software Development: A Systematic Map Study”. INGE CUC, vol. 19, no. 1, Jan. 2023, pp. 22–36, doi:10.17981/ingecuc.19.1.2023.03.