MENINGKATKAN KINERJA GURU KELAS IV, V DAN VI MELALUI SUPERVISI INDIVIDUAL DENGAN PENDEKATAN KOLABORATIF DI SD NEGERI 1 PENANGGALAN - Saruddin Solin (FITRAH was published by the Center for Research and Community Service (LP2M) Ar-Raniry Islamic State University Banda Aceh, 2020)