Ortiqov Umidjon Khudoyberdiyevich, Satimov Azamjon Ikromovich, and Ortiqov Sirojiddin Xoldorjon o’g’li. “General Principles of Physical Culture and Sports and Theoretical Foundations”. Eurasian Scientific Herald, vol. 7, Apr. 2022, pp. 226-31, https://geniusjournals.org/index.php/esh/article/view/1194.