Daulay, N., Siahaan, A., Siregar, I. A., Ritonga, L. A., & Maidiana, M. (2022). Sources of School Income at The Jam’iyah Mahmudiyah Foundation. Nazhruna: Jurnal Pendidikan Islam, 5(2), 501-510. https://doi.org/10.31538/nzh.v5i2.2107