Kasanah, P.N. and Kusumawati, N.D. 2022. Interactive E-Modules as Teaching Materials on Diffraction and Interference Materials: A Feasibility Test. Impulse: Journal of Research and Innovation in Physics Education. 2, 2 (Dec. 2022), 64–74. DOI:https://doi.org/10.14421/impulse.2022.22.01.