GHOFUR, A.; AGUSTINA, N.; ELVIERAYANI, R. R. Evaluation Of Production Cost Control Using Flexible Budget And Direct-Cost Variance In Restaurant Lamongan Sport Center: Evaluation Of Production Cost Control Using Flexible Budget And Direct-Cost Variance In Restaurant Lamongan Sport Center. Jurnal Mantik, [S. l.], v. 3, n. 3, p. 162-166, 2019. Disponível em: https://www.ejournal.iocscience.org/index.php/mantik/article/view/845. Acesso em: 30 jul. 2026.