Dewi E, Nisa NQ, Nurmahdianingrum SD, Triyono T. Progressive Muscle Relaxation as an Effort in Reducing Anxiety for Patients with Asthma Attacks. bik [Internet]. 2022 Jul. 1 [cited 2025 Nov. 16];15(2):185-9. Available from: https://journals2.ums.ac.id/bik/article/view/9740