Al-Khawaja, A. F. M. S., & Alshabibi, I. ben S. ben A. (2021). 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 OmanĀ . Journal of Educational and Psychological Sciences, 5(5), 163-151. https://doi.org/10.26389/AJSRP.S010920