Öztürk, Elif Gönül, Sibel Suveren, and Tekin Çolakoğlu. 2012. “Doping in Turkey, Assessment of Knowledge Level of Players about Doping (handball Study Case)”. Journal of Human Sciences 9 (1):249-60. https://www.j-humansciences.com/ojs/index.php/IJHS/article/view/1579.