Ma’arif I, Setyawan R, Zen MZ, Hendrawan KT, Andrianto JR. Regular Physical Activity Helps Improve the Physical Fitness Level of Elementary School Students During the COVID-19 Pandemic. Teor. metod. fiz. vihov. [Internet]. 2023 Aug. 30 [cited 2026 Jul. 11];23(4):505-11. Available from: https://www.tmfv.com.ua/journal/article/view/2095