Masrifah, Masrifah, et al. “Effectiveness of an Integrated Physics E-Book With Virtual Laboratory on Students’ Multiple Representation Skills and Conceptual Understanding”. SAINTIFIK@: Jurnal Pendidikan MIPA, vol. 10, no. 2, Oct. 2025, pp. 96-102, doi:10.33387/saintifik.v10i2.10724.