Hontarenko Володимир, Marchenko Світлана, and Korol Олександ. 2022. “Strength Abilities: Assessment and Specific Features of the Development of Elementary School-Aged Karate Boys”. Journal of Learning Theory and Methodology 3 (3). Kharkiv, Ukraine:109-15. https://doi.org/10.17309/jltm.2022.3.04.