Valentine, S., Listyasari, W.D. and Susanto, T.T.D. 2025. Collaboration Management in the Center of Excellence Program at State Vocational High School 56 Jakarta. International Education Trend Issues. 3, 1 (Aug. 2025), 39 -. DOI:https://doi.org/10.56442/ieti.v3i1.1201.