TY - JOUR AU - Shapouri, Mohammad AU - Saroukhani, Bagher AU - Mahdavi, Mohammad Sadegh TI - Proposing a Social Solidarity Model and its Role in Family Intergroup Solidarity in Developing Countries: A Case Study of Tehran City JO - Journal of Iranian Social Development Studies VL - 10 IS - 3 SP - 67 EP - 82 PY - 2018 DO - ER -