Apriani, Ni Wayan Riska, Aris Doyan, Nyoman Sridana, and Susilawati Susilawati. “The Validity of Physical Learning Device Based on Discovery Learning Model Assisted by Virtual Laboratory”. Jurnal Penelitian Pendidikan IPA 6, no. 2 (May 26, 2020): 132–135. Accessed November 23, 2024. https://jppipa.unram.ac.id/index.php/jppipa/article/view/413.