Fitriani, Herdiyana, et al. “Evaluative Process Base on Conceptual Problem Based Learning Model : A Conceptual Framework for Learning Tools to Train Critical Thinking”. Bioscientist : Jurnal Ilmiah Biologi, vol. 10, no. 2, Dec. 2022, pp. 1202-8, doi:10.33394/bioscientist.v10i2.6825.