Safitri, Diva Karunia, and Imam Sucahyo. 2021. “Pengembangan Lembar Kerja Peserta Didik (LKPD) Berbasis PhET Pada Materi Getaran Harmonik”. PENDIPA Journal of Science Education 6 (1):98-104. https://doi.org/10.33369/pendipa.6.1.98-104.