Shamsi-Nejad MJ. EFFECTS OF OPTIMISM SKILLS ON UPPER HIGH SCHOOL STUDENTS’ EMOTIONAL EXHAUSTION IN THE CITY OF ASHKEZAR. ujrra [Internet]. 2025 Feb. 6 [cited 2025 Feb. 22];4(1). Available from: http://tmp.twistingmemoirs.com/index.php/ujrra/article/view/139