E. Safitri, B. F. D. Sofia, B. N. S. Ningsih, and L. R. T. Savalas, “The effect of pre-class quizzes assisted flipped classroom learning on student learning outcomes in the biochemistry course of fatty acid metabolism”, J. Pijar.MIPA, vol. 18, no. 6, pp. 898–903, Nov. 2023.