Ashikyan A. THE ROLE OF PEDAGOGICAL VALEOLOGY IN IMPROVING THE WORKING CAPACITY OF STUDENTS AND PREVENTING THEIR FATIGUE. Educ-21st-Century [Internet]. 2023 Sep. 12 [cited 2024 May 19];2(4):181-9. Available from: https://journals.ysu.am/index.php/Educ-21st-Century/article/view/10959