Kabigting, Florencio Jr. “The The Discovery and Evolution of the Big Five of Personality Traits: A Historical Review”. GNOSI: An Interdisciplinary Journal of Human Theory and Praxis 4, no. 3 (August 11, 2021): 83-100. Accessed May 25, 2026. https://www.gnosijournal.com/index.php/gnosi/article/view/120.