Lenggogeni, K. and Mawardi, M. 2022. Effectiveness of a Flipped Classroom Based on Guided Inquiry Learning System on Acid-Base Solutions . Jurnal Penelitian Pendidikan IPA. 8, 4 (Oct. 2022), 1874–1881. DOI:https://doi.org/10.29303/jppipa.v8i4.1909.