., Nurlaelah; ., Trijeti; ., Firhan. The Impact of Design Changes on Cost and Time Performance in Luxury Residential Construction Projects in South Jakarta. Engineering And Technology Journal, [S. l.], v. 10, n. 12, p. 8235–8240, 2025. DOI: 10.47191/etj/v10i12.23. Disponível em: https://everant.org/index.php/etj/article/view/2418. Acesso em: 28 sep. 2026.