Sulistyanto, Tri Hadi, Oman Kusmana, Nur Izzati, Andes Ramadesa, and Fattah Firdaus. 2026. “Improving OSIS Leadership Skills through Interactive Training at SMKN 1 Cibatu Purwakarta”. Sinesia : Journal of Community Service 3 (1):62-76. https://doi.org/10.69836/sinesia-jcs.v3i1.810.