Calizaya Lopez, J. M., Bellido Medina, R. S., Aleman Vilca, Y., Morales Palao, B., Monzon Alvarez, G. I., & Ceballos Bejarano, F. E. (2020). Chapter 2: Statement of the problem and theoretical framework in quantitative research. Universidad Ciencia Y TecnologĂ­a, 24(107), 88-105. https://doi.org/10.47460/uct.v24i107.418