THE RELATIONSHIP BETWEEN SELF-CONTROL AND EGOCENTRIC ATTITUDE IN CLASS XI STUDENTS OF REIS CENDIKIA MEDAN VOCATIONAL SCHOOL ACADEMIC YEAR 2021-2022. J.Lit.Nus [Internet]. 2022 Aug. 8 [cited 2026 Jun. 17];2(1a):515-22. Available from: https://ejournal.citradharma.org/index.php/literasinusantara/article/view/326