@article{
  author = {Rahimi, Mohammad, Rostami, layla},
  title = {The Sociological Study of the Relationship between Social happiness and Life Expectancy Among Citizens of Guivi City in 2017},
  journal = {Social Sciences Quarterly},
  year = {2017},
  volume = {11},
  number = {38},
  pages = {259-284},
  doi = {}
}