The Comparison between the Effectiveness of Laughter Therapy and Progressive Muscle Relaxation Therapy towards Insomnia in Elderly Community at St. Yoseph Kediri Nursing Home. IJPHRD [Internet]. 2020 Sep. 11 [cited 2026 May 5];11(9):218-25. Available from: https://medicopublication.com/index.php/ijphrd/article/view/11012