Fahmei, Tayser Bauomei, Heba Kedees Marzouk, Sahar Elsayed Gaber Behilak, Ghalia Elmoghazy Elkasaby, and Amal Yousef Abdelwahed. “Effect of Psychological First Aid Program on Anxiety Level and Perceived Stress Among Elder Persons”. International journal of health sciences 6, no. S10 (April 18, 2022): 1714–1735. Accessed November 6, 2024. https://sciencescholar.us/journal/index.php/ijhs/article/view/15077.