Jamilah, F., P. Wahyuni, and T. W. Septarianto. “The Effect of the Problem-Based Learning Model on Students Critical Thinking Ability”. IJLECR (International Journal of Language Education and Cultural Review), Vol. 9, no. 1, June 2023, pp. 56-63, doi:10.21009/ijlecr.v9i1.37837.