Mariappan, N., H. Noordin, and M. S. Samsir. “Mental Toughness and Athletic Performance in Male Adolescents Field Athletes: A Multiple Regression Analysis”. Jurnal Pemikir Pendidikan, vol. 14, no. 1, Feb. 2026, pp. 46-63, doi:10.51200/jpp.v14i1.7181.