SARI , K. P. .; SUPRIADI; ERA, D. P. . The Effect of Providing Deep Breathing Relaxation Techniques on Anxiety Levels in the Elderly at the Elderly Posyandu in South Sangatta Village. Formosa Journal of Science and Technology , [S. l.], v. 2, n. 9, p. 2539–2550, 2023. DOI: 10.55927/fjst.v2i9.5942. Disponível em: https://journal.formosapublisher.org/index.php/fjst/article/view/5942. Acesso em: 14 may. 2026.