Muharom, F., Nugroho, A., Putra P, H. R., & Nanda, G. A. (2022). A WhatsApp-based Flipped Classroom Model: Effect on Students’ Higher Order Thinking Skill. Ta’dib: Jurnal Pendidikan Islam, 27(1), 41-51. https://doi.org/10.19109/td.v27i1.13664