IRANI FARIBURZ Z; TRIVEDI GUNJAN Y; SINHA NEETA. Development and validation of humming process to increase heart rate variability & attention for college students. International Journal of Indian Psychȯlogy , [S. l.], v. 9, n. 1, 2022. DOI: 10.25215/0901.028. Disponível em: https://ijip.co.in/index.php/ijip/article/view/1724. Acesso em: 25 feb. 2026.