Neswary, S. B. A., and B. K. Prahani. “Profile of Students’ Physics Critical Thinking Skills and Application of Problem Based Learning Models Assisted by Digital Books in Physics Learning in High School”. Jurnal Penelitian Pendidikan IPA, vol. 8, no. 2, Apr. 2022, pp. 781-9, doi:10.29303/jppipa.v8i2.1444.