Yudianto, Y., E. Rukman, H. Hanafiah, and F. Karim Fatkhullah. “Principal Management in Improving School Achievement at SMP Darul Hikam Bandung”. The International Journal of Education Management and Sociology, vol. 2, no. 1, Feb. 2023, pp. 1-7, doi:10.58818/ijems.v2i1.27.