QASIM, Syed Sartaj; QURESHI , Tauseef. Implementing an Effective Cost Control Strategy at Stations: Case Study of PIA. International Journal of Experiential Learning & Case Studies, [S. l.], v. 3, n. 1, p. 33–42, 2018. Disponível em: https://journals.iobm.edu.pk/index.php/ijelcs/article/view/333. Acesso em: 4 apr. 2026.