nikgohar, A. (2006). Social security system in France. Social Security Journal, 8(2), 7–44.

nikgohar, A. "Social security system in France", Social Security Journal, 8, 2, 2006, 7–44.

nikgohar, A. (2006). 'Social security system in France', Social Security Journal, 8(2), pp. 7–44.

nikgohar, A., "Social security system in France." Social Security Journal, 8 2 (2006): 7–44,

nikgohar A. Social security system in France. Social Security Journal. 2006;8(2):7–44 (In Persian).