Baharuddin, R.A. et al. 2022. Model pembelajaran self-directed learning berbantuan website notion: meningkatkan kemampuan berpikit kritis siswa SMA. Jurnal Inovasi Teknologi Pendidikan. 9, 3 (Dec. 2022), 245–257. DOI:https://doi.org/10.21831/jitp.v9i3.52017.