W. Arias Gallegos, D. Velásquez Ramos, J. C. Huamani Cahua, M. Clark, A. Galdos Jiménez, and V. Huertas Solís, “Hope in the People of Arequipa (Peru): Psychometric Properties of the Herth Hope Index and Comparisons by Gender and Age”, PSICODEBATE, vol. 24, no. 1, pp. 21-34, Jun. 2024.