Surbakti, Amanah, et al. “THE INFLUENCE OF SELF-ESTEEM ON PSYCHOLOGICAL-WELL-BEING THROUGH STRATEGY-COPING MEDIATION IN GRADE XII STUDENTS OF MEDAN STATE HIGH SCHOOL”. HEARTY, vol. 13, no. 6, Dec. 2025, pp. 1653-6, doi:10.32832/hearty.v13i6.18922.