Barreto Ascona JI, Lezcano Mencia A. Analysis and substantiation of research designs: exploring quantitative, qualitative and mixed approaches based on Creswell & Creswell (2018). Rev. unida cient. [Internet]. 2023 July 31 [cited 2026 Nov. 9];7(2):110-7. Available from: https://revistacientifica.unida.edu.py/publicaciones/index.php/cientifica/article/view/179