F. Nashori, R. Rachmy Diana, F. . Mahdanisa Zakie, and N. . Zulfa Khairunnisa, “Character Strength and Happiness among Environmental and Educational Volunteers in a Collectivistic Culture ”, An-Nafs, vol. 8, no. 1, pp. 98–112, Jun. 2023, doi: 10.33367/psi.v8i1.3214.