الإتاحة: http://repositoriouba.sisbi.uba.ar/gsdl/cgi-bin/library.cgi?a=d&c=exlibris&d=8_2019-8_12_htmTest
الإتاحة: https://doi.org/20.500.12110/tesis_n5086_StiglianoTesthttps://hdl.handle.net/20.500.12110/tesis_n5086_StiglianoTesthttp://repositoriouba.sisbi.uba.ar/gsdl/cgi-bin/library.cgi?a=d&c=aextesis&d=tesis_n5086_Stigliano_oaiTest
الإتاحة: http://bibliotecadigital.econ.uba.ar/econ/collection/tpos/document/1502-2529_ZimmerKETesthttp://repositoriouba.sisbi.uba.ar/gsdl/cgi-bin/library.cgi?a=d&c=tpos&d=1502-2529_ZimmerKE_oaiTest