Arsyad, S. and Imrannudin, I. 2017. THE FAILURE OF CERTIFICATION PROGRAM TO UNIFY INDONESIAN TEACHERS’ PERCEPTION ON TEACHER PROFESSIONALISM: THE CASE OF BENGKULU JUNIOR AND SENIOR HIGH-SCHOOL TEACHERS. TRIADIK. 15, 2 (Nov. 2017). DOI:https://doi.org/10.33369/triadik.v15i2.2867.