Prihanto, J. ., V. . Deak, and Y. Linugroho. “Implementation of the Code of Ethics in Improving the Professionalism of Christian Religious Education Teachers”. Formosa Journal of Multidisciplinary Research, vol. 2, no. 5, May 2023, pp. 961-72, doi:10.55927/fjmr.v2i5.3952.