Salafudin, and Wasino. “Teachers’ Perceptions of the Implementation of Teacher Certification in State Junior High Schools in Gabus District Grobogan Regency”. Jurnal Visionary : Penelitian Dan Pengembangan Di Bidang Administrasi Pendidikan, vol. 14, no. 1, Apr. 2026, pp. 254-8, doi:10.33394/vis.v14i1.19794.