Kusmantoro, R., & Rahayuningsih, I. (2023). The Effect of Learning Achievement on Schadenfreude with Self Esteem Mediation on Students of SMAN 1 Kebomas Grade Eleven. Journal Universitas Muhammadiyah Gresik Engineering, Social Science, And Health International Conference (UMGESHIC), 2(1), 138-147. doi:10.30587/umgeshic.v1i2.5117