Qotrunnada , Nova Allysa, and Binar Kurnia Prahani. “Profile of PBL Model Assisted by Digital Books to Improve Problem Solving Ability of High School Students on Dynamic Fluids”. Jurnal Penelitian Pendidikan IPA, vol. 8, no. 3, July 2022, pp. 1176-83, doi:10.29303/jppipa.v8i3.1451.