firmansyah, angga, S. Rahayu, and N. Nasuka. “Evaluation of Women’s Volleyball Coaching Program on Student Sports Training Education Center in Musi Banyuasin Indonesia”. Journal of Physical Education and Sports, Vol. 9, no. 3, Dec. 2020, pp. 289-96, http://journal.unnes.ac.id/sju/jpes/article/view/44185.