H. Fitriani, T. Samsuri, F. Rachmadiarti, R. Raharjo, and C. D. Mantlana, “Development of Evaluative-Process Learning Tools Integrated with Conceptual-Problem-Based Learning Models: Study of Its Validity and Effectiveness to Train Critical Thinking”, Inter. J. Essent. Comp. Edu, vol. 1, no. 1, pp. 27–37, Jun. 2022, doi: 10.36312/ijece.v1i1.736.