Khory, F. D., Istiyono, E., Widihastuti, W., Suroto, S., Maksum, A., Hartoto, S., & Prakoso, B. B. (2026). Development and validation of a self-efficacy instrument for university students in swimming lesson. International Journal of Sport Studies for Health. https://journals.kmanpub.com/index.php/Intjssh/article/view/4823