Khoeriah, Ira Herli, Ade Gafar Abdullah, and Budi Mulyanti. “Reconstruction of Vocational High School Physics Instructional Materials ”. Momentum: Physics Education Journal 4, no. 2 (September 19, 2020): 85-93. Accessed October 27, 2021. https://ejournal.unikama.ac.id/index.php/momentum/article/view/4572.