Sari, D. C. (2026) “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, 15(3), pp. 2531–2541. doi: 10.36526/sosioedukasi.v15i3.9774.