Nova, A., Hamzah, M., Sinulingga, A., & Firmansyah, G. (2021). The Level Of Anxiety’s Referees Of Langsa (Football Association Of Indonesia) When Enforcing The Laws Of The Game During A Match. Jp.Jok (Jurnal Pendidikan Jasmani, Olahraga Dan Kesehatan), 4(2), 224-234. https://doi.org/10.33503/jp.jok.v4i2.1688