Jeffery, Diana, and Nilofar Nouhi. “The Role of Grit and Zest for Life in Enhancing Work Engagement: A Cross-Sectional Study”. KMAN Counseling & Psychology Nexus, vol. 2, no. 2, July 2024, pp. 27-33, https://kmanpubjournals.com/index.php/psychnexus/article/view/3024.