(2020). 财经天下．2020,no.15-20缺18.
Chicago Style aipamena财经天下．2020,no.15-20缺18. 2020.
MLA aipamena财经天下．2020,no.15-20缺18. 2020.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.
APA aipamena
(2020). 财经天下．2020,no.15-20缺18.
Chicago Style aipamena财经天下．2020,no.15-20缺18. 2020.
MLA aipamena财经天下．2020,no.15-20缺18. 2020.