Budiantara, Anang, et al. “Development of Teaching Materials Based Learning Management System ‘Sifajargoro’ to Foster Attitudes of Responsibility and Student Learning Outcomes in The Subjects of Civics Fifth Grade Elementary School Students ”. Edunesia : Jurnal Ilmiah Pendidikan, vol. 4, no. 1, Jan. 2023, pp. 294-11, doi:10.51276/edu.v4i1.346.