NOVRIANSYAH; MAULANA FAJAR, M.; RITANZA, F.; PUTRA UTAMA J, E. Mental Toughness dan Pemain Sepak Bola. SPORT GYMNASTICS : Jurnal Ilmiah Pendidikan Jasmani, [S. l.], v. 6, n. 2, p. 393–404, 2025. DOI: 10.33369/gymnastics.v6i2.44934. Disponível em: https://ejournal.unib.ac.id/gymnastics/article/view/44934. Acesso em: 21 oct. 2025.