Darmawan, Wisnu, and Nyoto Harjono. “Efektivitas Problem Based Learning Dan Two Stay Two Stray Dalam Pencapaian Hasil Belajar”. Jurnal Basicedu 4, no. 2 (April 3, 2020): 402–411. Accessed May 2, 2024. https://jbasic.org/index.php/basicedu/article/view/364.