1.
Supriatin T, Trihandayani Y, Nurhayani Y, Rithpho P. The Effect of Progressive Muscle Relaxation on Sleep Quality and Anxiety Level of Students Confirmed Covid-19. IJNI [Internet]. 2022 Dec. 31 [cited 2024 Dec. 30];1(2):7-12. Available from: https://journal.qqrcenter.com/index.php/ijni/article/view/23