Musawwa, Muhammad Miqdam, Beta Wulan Febriana, and Widinda Normalia Arlianty. 2018. “Analysis of Understanding of First-Year Chemistry Education Students on Molecular Forces Topic”. IJCER (International Journal of Chemistry Education Research) 2 (2):71-76. https://doi.org/10.20885/ijcer.vol2.iss2.art3.