Examining the Psychological Determinants of Happiness: The Role of Gratitude, Mindfulness, and Emotion Regulation. International Journal of Science and Social Science Research, [S. l.], v. 3, n. 1, p. 169–178, 2025. DOI: 10.63671/ijsssr.v3i1.402. Disponível em: https://www.ijsssr.com/index.php/j/article/view/402. Acesso em: 15 apr. 2026.