Perdana, O. W., Murdiono, M., & Nurgiansah, T. H. (2023). Flipbook-based hybrid media in e-learning Pancasila education course at PGRI Yogyakarta University. Jurnal Civics: Media Kajian Kewarganegaraan, 20(2), 270–279. https://doi.org/10.21831/jc.v20i2.48334