Susanti, S., B. Maftuh, and D. F. K. Dwiputra. “A Systematic Literature Review on Flipped Classrooms in Elementary Schools for Advancing 21st-Century Learning”. Education and Human Development Journal, vol. 9, no. 2, Sept. 2024, pp. 173-84, doi:10.33086/ehdj.v9i3.6158.