MUHAMAD HANIF; BAHTIAR NUR; TICA RENNY VANSISCA. PRINCIPAL MANAGEMENT IN IMPROVING THE QUALITY OF EDUCATION AT FATHUL ULUM MIDDLE SCHOOL, BOARDING SCHOOL - BASED. Journal Informatic, Education and Management (JIEM), v. 8, n. 2, p. 203-208, 21 May 2026.