Sudrajat, S. “Teachers Professionalism and The Challenge Of Education In A Global Era”. AL-MURABBI: Jurnal Studi Kependidikan Dan Keislaman, Vol. 3, no. 2, Jan. 2017, pp. 211-27, https://www.jurnal.stiti-kp.ac.id/index.php/murabbi/article/view/2591.