Siregar, A.H. and Hadijaya, Y. 2019. Madrasah Headmaster Performance Strategy in Madrasah Al-Washliyah 22 Tembung. Britain International of Humanities and Social Sciences (BIoHS) Journal. 1, 2 (Oct. 2019), 167-173. DOI:https://doi.org/10.33258/biohs.v1i2.47.