Mariya, S., A. Ananda, S. Anwar, E. Erianjoni, and M. Montesori. “Mobile Learning-Based Pocketbook Development in Educational Field Practice in Increasing the Competency of Professional Teachers”. International Journal of Educational Dynamics, Vol. 5, no. 1, Dec. 2022, pp. 131-7, doi:10.24036/ijeds.v5i1.376.