Rafu, M. N.; Erlinda, M.; Nagul, W. The Effectiveness of Discussion Techniques Through Group Guidance Services in Improving the Self-Concept of Grade VIII-F Students at UPTD SMP Negeri 11 Naimata, Kupang City, During the 2025/2026 Academic Year. Edumaspul Journal 2026, 10, 995-1001.