Sari, Dewi Comala, et al. “STRATEGIC MANAGEMENT OF GREEN COMPETENCY TRANSFORMATION IN VOCATIONAL EDUCATION IN MEDAN CITY: PROJECT-BASED CIRCULAR LEARNING (PBCL) APPROACH”. SOSIOEDUKASI : JURNAL ILMIAH ILMU PENDIDIKAN DAN SOSIAL, vol. 15, no. 3, Sept. 2026, pp. 2531-4, doi:10.36526/sosioedukasi.v15i3.9774.