Aristiyanto, G. Septiar Pontang, Sukarno, F. Eko Setiawan, and F. Elang Arsyandi. “The Effect of Circuit Training on Physical Fitness of Hockey Athletes in Semarang District”. Proceedings of Conference on Health Universitas Ngudi Waluyo, vol. 1, no. 1, Mar. 2022, pp. 232-8, https://callforpaper.unw.ac.id/index.php/ICH-UNW/article/view/13.