Lumban Gaol, Sahat Patar, Novri Youla Kandowangko, Novianty Djapri, and Nina Lamatenggo. 2026. “A Synthesis of the ADDIE Model and Pustekkom: Development of the ‘SAHAT’ Interactive Multimedia Tool for Christian Religious Education in Elementary Schools”. FIKROTUNA: Jurnal Pendidikan Dan Manajemen Islam 15 (02):737-62. https://doi.org/10.32806/jf.v15i02.2295.