PURWANTO, P. PENGARUH UNIT COST LAYANAN TERHADAP PENDAPATAN SEKOLAH DI TENGAH DINAMIKA LINGKUNGAN . AKTUAL, [S. l.], v. 22, n. 2, p. 62–74, 2024. Disponível em: http://jurnal.stietrisnanegara.ac.id/index.php/aktual/article/view/448. Acesso em: 25 oct. 2025.