The effect of immediate "verbal" and deferred "visual verbal" feedback in improving the beating skill of volleyball. Tuj-hlth [انترنت]. 24 ديسمبر، 2019 [وثق 5 مايو، 2026];41(6). موجود في: https://journal.latakia-univ.edu.sy/index.php/hlthscnc/article/view/9353