MUHAMMAD SAQIB KHAN. A Winner Never Quits and Quitter Never Wins. Global Journal of Management and Business Research, [S. l.], v. 15, n. A9, p. 23–28, 2015. Disponível em: https://journalofbusiness.org/index.php/GJMBR/article/view/1740. Acesso em: 2 may. 2024.