Syafrineti, W., L. Liza, and F. Haris. “Dampak Ekstrakurikuler Karate Terhadap Pendidikan Karakter”. JURNAL STAMINA, Vol. 4, no. 6, June 2021, pp. 260-5, http://stamina.ppj.unp.ac.id/index.php/JST/article/view/828.