Pertiwi, Gracia, and Yovita Sastrini. “THE EFFECT OF LAUGHTER THERAPY ON DECLINE LEVEL OF ANXIETY AMONG THE ELDERLY IN SAMARINDA”. GPH - International Journal of Health Sciences and Nursing 7, no. 01 (February 3, 2024): 30-35. Accessed May 15, 2024. https://gphjournal.org/index.php/hsn/article/view/1203.