F. Fatmawati and K. Kamarudin, “The Level of Physical of Extracurricular Volleyball Students At Senior High School 5 Pekanbaru: Tingkat Kesegaran Jasmani Siswa Ekstrakurikuler Bolavoli SMA Negeri 5 Pekanbaru”, ORKES, vol. 1, no. 3, pp. 535–544, Dec. 2022.