SHOLEH, Muhammad; SURAYA; DINA ANDAYATI. Application of Constraint Database for Validation Synchronization between Front End and Back End in Waste Customer Data Management Information System . Engineering And Technology Journal, [S. l.], v. 11, n. 03, p. 9173–9178, 2026. DOI: 10.47191/etj/v11i03.06. Disponível em: https://www.everant.org/index.php/etj/article/view/2630. Acesso em: 28 sep. 2026.