J. Mattar and A. P. S. Aguiar, “ACTIVE METHODOLOGIES: PROBLEM-BASED LEARNING, PROBLEM-POSING AND CASE METHOD”, Br. J. Ed., Tech. Soc., vol. 11, no. 3, pp. 404–415, Nov. 2018, doi: 10.14571/brajets.v11.n3.404-415.