EDUKASI BAHAYA PENYALAHGUNAAN NARKOBA PADA REMAJA DI LEMBAGA PEMASYARAKATAN KHUSUS ANAK KELAS I MEDAN: Optimizing The Role Of Teenage Cadre Of Integrated Service Post (Posyandu) Through Education On The Dangers Of Drug Abuse At Medan Class 1 Youth Penitentiary - Purba, Sri Dearmaita; Harianja, Ester Saripati; Sembiring, Rinawati (Jurnal Abdimas Mutiara, 2022)