AL-SHIDHANI, T. A. The Seven Habits of Highly Effective People. Sultan Qaboos University Medical Journal, [S. l.], v. 11, n. 3, p. 426–427, 2011. Disponível em: https://journals.squ.edu.om/index.php/squmj/article/view/1617. Acesso em: 17 jun. 2025.