Kartika, I. ., M. . Firman, M. Margono, and A. . Rohman. “SCHOOL PRINCIPALS’ RESPONSES AND CHALLENGES IN THE IMPLEMENTATION OF PERMENDIKBUDRISTEK NUMBER 40 OF 2021”. Indonesian Journal of Educational Development (IJED), vol. 4, no. 2, Aug. 2023, pp. 230-7, doi:10.59672/ijed.v4i2.3016.