BURKHARDT, J. T. Principles of Methodology: Research Design in Social Science. Journal of MultiDisciplinary Evaluation, [S. l.], v. 8, n. 18, p. 62–64, 2012. Disponível em: https://journals.sfu.ca/jmde/index.php/jmde_1/article/view/358. Acesso em: 30 sep. 2022.