PRATIWI, E.; SUHARJANA; DHARMA HITA, I. P. A.; SARI, H. P.; ARIESTIKA, E. Indonesia’s Badminton National Referees: What is The Level of Self-Confidence and Concentration?. Innovare Journal of Education, [S. l.], v. 10, n. 1, p. 7–12, 2022. DOI: 10.22159/ijoe.2022v10i1.43398. Disponível em: https://journals.innovareacademics.in/index.php/ijoe/article/view/43398. Acesso em: 22 nov. 2024.