Istikaroh, A. 2019. Qualification and Competence of Headmaster as A Supervisor According to Regulation of The Minister of National Education Number 13 of 2007 to Face Industry 4.0. International Conference of Moslem Society. 3, (Apr. 2019), 348–360. DOI:https://doi.org/10.24090/icms.2019.2437.