Kurniawan S, Sutadji E, Sudjono I. The effect of blended learning of Student Teams Achievement Division (STAD) and jigsaw towards higher-order thinking skills. JPTK [Internet]. 2021 Jan. 13 [cited 2025 Oct. 22];3(4):221-6. Available from: http://jptk.ppj.unp.ac.id/index.php/jptk/article/view/79