Ni Nyoman Ayu Purnama Dewi, and Gusti Ngurah Sastra Agustika. “The Problem-Based Learning Model in Mathematics Subjects by Controlling the Critical Thinking Ability of Elementary School Students”. Mimbar Ilmu, vol. 28, no. 1, Mar. 2023, pp. 23-31, doi:10.23887/mi.v28i1.57913.