Al-Khawaja, A. F. M. S.; Alshabibi, I. ben S. ben A. Optimism and Pessimism During Coronavirus Pandemic & Its Relationship With Psychological Resilience on a Sample of Tenth Grades Students in Al-Sharqiya North at Sultanate of Oman . JEPS 2021, 5 (5), 163-151. https://doi.org/10.26389/AJSRP.S010920.