الإتاحة: https://doi.org/20.500.12110/tesis_n5604_MartinezTesthttps://hdl.handle.net/20.500.12110/tesis_n5604_MartinezTesthttp://repositoriouba.sisbi.uba.ar/gsdl/cgi-bin/library.cgi?a=d&c=aextesis&d=tesis_n5604_Martinez_oaiTest
الإتاحة: https://doi.org/20.500.12110/tesis_n5604_MartinezTesthttps://hdl.handle.net/20.500.12110/tesis_n5604_MartinezTest