M. Fatoni, A. A. Syaukani, P. Indarto, I. N. Saputro, and I. H. Musyfiroh, “Psychosocial predictors of academic achievement in physical education among Indonesian university students: Testing the mediating role of mental toughness”, Phys. Educ. Sport. Stud. Res., vol. 4, no. 3, pp. 291-301, Dec. 2025.