Neira Neira ML, Reyes Cárdenas NA, Villarreal Chérrez TM. Elements of the Control System applied in the public procurement of Ecuadorian entities during the state of emergency. RIE [Internet]. 2022 Jan. 4 [cited 2026 Oct. 2];. Available from: https://www.revista-iberoamericana.consultorioampuero.com/index.php/es/article/view/202