WEINSTEIN, Martin; TUROVETZ, Lynn; SMITH, Jonathan C. The Validity of an Objective, Inexpensive Measure of Relaxation. Canadian Journal of Counselling and Psychotherapy, [S. l.], v. 23, n. 2, 2011. Disponível em: https://cdm.ucalgary.ca/index.php/rcc/article/view/59560. Acesso em: 5 jan. 2026.