Fatoni, M.; Syaukani, A. A.; Indarto, P.; Saputro, I. N.; Musyfiroh, I. H. Psychosocial Predictors of Academic Achievement in Physical Education Among Indonesian University Students: Testing the Mediating Role of Mental Toughness. Phys. Educ. Sport. Stud. Res. 2025, 4, 291-301.