(2019). 商界.2019,no.9,11.
Chicago Style aipamena商界.2019,no.9,11. 2019.
MLA aipamena商界.2019,no.9,11. 2019.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.
(2019). 商界.2019,no.9,11.
Chicago Style aipamena商界.2019,no.9,11. 2019.
MLA aipamena商界.2019,no.9,11. 2019.