Hastuti, Tri Ani, Sugeng Purwanto, ismail Gani, Pasca Tri Kaloka, and Hideaki Tanimoto. “Análisis De Autoeficacia De Entrenadores Extracurriculares De Artes Marciales De Escuelas Secundarias De Yogyakarta: género Y Nivel De Licencia De Entrenador (Self Efficacy Analysis of Yogyakarta Middle School Extracurricular Martial Arts Trainers: Gender and Coaching License Level)”. Retos 58 (September 1, 2024): 592–597. Accessed January 12, 2026. http://207.180.252.49/index.php/retos/article/view/106839.