ALKIN, Marvin C.; PATTON, Michael Q.. The Birth and Adaptation of Evaluation Theories. Journal of MultiDisciplinary Evaluation, [S.l.], v. 16, n. 35, p. 1-13, june 2020. ISSN 1556-8180. Available at: <https://journals.sfu.ca/jmde/index.php/jmde_1/article/view/637>. Date accessed: 10 aug. 2020.