Абрамова, Наталья, and Mohammed Syed. “THE DEPENDANCE OF RESISTANCE IN RESPIRATORY INFECTIONS, VITAMIN D DEFICIENCY AND ACADEMIC ACHIEVEMENT ON PHYSICAL ACTIVITY OF STUDENTS”. SWorldJournal 1, no. 10-01 (November 30, 2021): 115–118. Accessed April 27, 2024. https://sworldjournal.com/index.php/swj/article/view/swj10-01-001.