Herzekian Mendrofa, “Efforts to Increase Teacher Discipline in Teaching Attendance in Class Through the Implementation of Rewards and Punishment at SDN 071060 Lasara Idanoi, Gido District, Nias Regency, 2021/2022 Academic Year”, OJE, vol. 2, no. 1, pp. 7–13, Feb. 2023, doi: 10.61730/oje.v2i1.62.