Document Type : Original Article
dadgar,Y . (2019). public goods. Encyclopedia of Economics, 2(2), 1-7.
dadgar,Y . "public goods", Encyclopedia of Economics, 2, 2, 2019, 1-7.
dadgar Y. (2019). 'public goods', Encyclopedia of Economics, 2(2), pp. 1-7.
Y dadgar, "public goods," Encyclopedia of Economics, 2 2 (2019): 1-7,
dadgar Y. public goods. Encyclopedia of Economics. 2019;2(2):1-7 (In Persian).