POLINAR, Mark Anthony N.; DELA CRUZ, Gerelyn S. Contract Management System among Selected Construction Companies in Qatar. International Journal of Multidisciplinary: Applied Business and Education Research, Malang, Indonesia, v. 4, n. 8, p. 2853–2862, 2023. DOI: 10.11594/ijmaber.04.08.23. Disponível em: https://ijmaberjournal.org/index.php/ijmaber/article/view/1214. Acesso em: 23 jan. 2026.