Volume & Issue: Volume 6, Issue 1 - Serial Number 20, March 2020 
The Prediction of Sleep Quality Based on Psychological Hardiness and Happiness in the Elderly

Pages 27-38

10.22126/jap.2020.3772.1320

delniya sheikhesmaeili; peyman hatamyan; jahangir karami; elahe lorestani; faramarz morovati