Natonis, Desi Luty Ermawati, et al. “Study Discipline Among High School Students: Effects of Social Media Usage, Self-Management, and Peer Environment ”. Edu Cendikia: Jurnal Ilmiah Kependidikan, vol. 6, no. 02, Aug. 2026, pp. 1549-63, doi:10.47709/educendikia.v6i02.8874.