(2021). 商学院．2021,no.9-12.
Chicago Style aipamena商学院．2021,no.9-12. 2021.
MLA aipamena商学院．2021,no.9-12. 2021.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.
APA aipamena
(2021). 商学院．2021,no.9-12.
Chicago Style aipamena商学院．2021,no.9-12. 2021.
MLA aipamena商学院．2021,no.9-12. 2021.