Suryani; Ismaya, E. A.; Setiadi, G.; Lebona, R. The Effect of Principals’ Managerial Skills and Teachers’ Participation in Teacher Working Groups (KKG) on Elementary School Teacher Performance in Welahan District. EJES 2026, 2 (2), 99-110. https://doi.org/10.65820/ejes-8vol2-issue2-2026.