Widyasari, S. F., Masykur, R. ., & Sugiharta, I. . (2021). FLIPPED CLASSROOM : PENINGKATAN KEMAMPUAN BERPIKIR KRITIS MATEMATIS DAN MOTIVASI BELAJAR PESERTA DIDIK MADRASAH TSANAWIYAH. Journal of Mathematics Education and Science, 4(1), 15–22. https://doi.org/10.32665/james.v4i1.171