@article{Can_2026, title={Selection of Exercise Systems and Development of a Training Plan to Improve Speed-Strength for Male Volleyball Athletes Aged 14–15 at the Hanoi Sports Training and Competition Center}, volume={8}, ISSN={2581-8651}, url={http://dx.doi.org/10.22161/jhed.8.3.1}, DOI={10.22161/jhed.8.3.1}, number={3}, journal={Journal of Humanities and Education Development}, publisher={AI Publications}, author={Can, Nguyen Van and Thang, Truong Duc}, year={2026}, pages={01–06} }