Kusmawati, K., I. Wilujeng, and S. Susilowati. “Analysis of Teacher Needs for Science E-Book Teaching Materials Using the PBL Model With an In-Depth Learning Approach in Junior High Schools”. Jurnal Inovasi Pendidikan Dan Sains, Vol. 7, no. 1, Apr. 2026, pp. 198-07, doi:10.51673/jips.v7i1.2759.