Document Type : Original Article
yarmohamadian,N . (2021). Urban Systems. Encyclopedia of Economics, 3(1), 1-1.
yarmohamadian,N . "Urban Systems", Encyclopedia of Economics, 3, 1, 2021, 1-1.
yarmohamadian N. (2021). 'Urban Systems', Encyclopedia of Economics, 3(1), pp. 1-1.
N yarmohamadian, "Urban Systems," Encyclopedia of Economics, 3 1 (2021): 1-1,
yarmohamadian N. Urban Systems. Encyclopedia of Economics. 2021;3(1):1-1 (In Persian).