Jatmiko J, Primasatya N. The use of Multimedia of geometry Based on Van Hiele Thinking Theory: An Alternative to Improve Critical Thinking Skill of Elementary School Students. int [Internet]. 2022Oct.22 [cited 2024Apr.24];1(1):291-300. Available from: https://proceeding.unpkediri.ac.id/index.php/ip/article/view/2684