Tian, Zengrui, and Guillermo Buitrago. “Tolerance, Perceived Happiness and Economic Development: Exploring Relationships on Easterlin Variables for Latin America”. Journal of Research in Business, Economics and Management 10, no. 4 (April 8, 2018): 2028-2033. Accessed December 29, 2024. http://scitecresearch.com/journals/index.php/jrbem/article/view/1478.