Sahri, S. (2022). Improving the Quality of Designing Learning and Teacher Competence Using Collaborative Supervision at SDN 20 Sitiung: Peningkatan Kualitas Mendesain Pembelajaran dan Kompetensi Guru Dengan Menggunakan Supervisi Kolaboratif di SDN 20 Sitiung. Journal of Vocational Education and Information Technology (JVEIT), 2(2), 90–95. https://doi.org/10.56667/jveit.v2i2.578