Adina, Fevarine Weka, and Farida Harahap. “Adaptation and Validation of Mental Toughness-8 Measurement Tool in Indonesian Language: Confirmatory Factor Analysis (CFA) Study on College Students”. G-Couns: Jurnal Bimbingan Dan Konseling, vol. 10, no. 02, Dec. 2025, pp. 1052-61, doi:10.31316/g-couns.v10i02.7437.