Kusmantoro, Rapaela, & Idha Rahayuningsih.
" The Effect of Learning Achievement on Schadenfreude with Self Esteem Mediation on Students of SMAN 1 Kebomas Grade Eleven." <em>Journal Universitas Muhammadiyah Gresik Engineering, Social Science, and Health International Conference (UMGESHIC)</em> [Online], 2.1 (2023): 138-147. Web.  5 May. 2024