Ismail, Taufik, Sugiyanto, and Sapta Kunta Purnama. “Analysis of the Survey on Coaching of Athletes With Disabilities in Volleyball at NPC Indonesia: Analisis Survei Pembinaan Atlet Disabilitas Cabang Olahraga Bolavoli Duduk Di NPC Indonesia”. Procedia of Social Sciences and Humanities 3 (June 1, 2022): 256-262. Accessed August 20, 2022. https://pssh.umsida.ac.id/index.php/pssh/article/view/167.