Quevedo-Vázquez, J., Ormaza-Andrade, J., Toledo-Mora, G., & Quevedo-Cuenca, J. (2021). Plastic bottle containers, a feasible business model. Azogues case - Ecuador. 593 Digital Publisher CEIT, 6(2), 193-202. https://doi.org/10.33386/593dp.2021.2.481