Changes in Perceived Stress Following a Brief Classroom-Based Mindfulness Program Among Twelfth Grade Students: A Pre-Experimental One Group Study. Professional Nursing Media Journal , [S. l.], v. 1, n. 2, p. 50–57, 2026. Disponível em: https://journal.arisnuspublishing.com/pnmj/article/view/9. Acesso em: 24 oct. 2026.