Nova, A., Hamzah, M., Sinulingga, A. and 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), pp. 224-234. doi: 10.33503/jp.jok.v4i2.1688.