KHALIL AHMED; DR. SARDAR AHMED. ARABIC: أسباب ضياع الوقت ومقترحات لاستثمار الوقت دراسة تحليلية: Reasons for wasting time and suggestions for investing time An analytical study. Al-Dalili, [S. l.], v. 1, n. 1, 2019. Disponível em: https://aldalili.com/index.php/dalili/article/view/10. Acesso em: 13 may. 2026.