GINTING, Rinaldi; SURYADI, Lis. RANCANGAN SISTEM INFORMASI ADMINISTRASI FITNESS DENGAN METODOLOGI BERORIENTASI OBYEK STUDI KASUS : RYAN FITNESS. IDEALIS : InDonEsiA journaL Information System, [S. l.], v. 1, n. 2, p. 213–218, 2018. Disponível em: https://jom.fti.budiluhur.ac.id/index.php/IDEALIS/article/view/322. Acesso em: 13 feb. 2025.