A Aziz, N. F., H. Ahmad, and I. Mat Nashir. “Validation of Technical and Vocational teachers’ Competency Evaluation Instrument Using the Rasch Model”. Jurnal Pendidikan Sains Dan Matematik Malaysia, vol. 9, no. 1, May 2019, pp. 18-25, doi:10.37134/jpsmm.vol9.1.3.2019.