Syahman, Syarif, et al. “The Effectiveness and Application of the School Meal Policy in Improving the Behavior of the High School Students in a Satuan Pendidikan Kerjasama Private School”. Jurnal Manajemen Pendidikan, vol. 9, no. 1, Jan. 2020, pp. 51-60, doi:10.33541/jmp.v9i1.3012.