(2021). 销售与市场：营销版．2021,no.9-12.
Chicago Style aipamena销售与市场：营销版．2021,no.9-12. 2021.
MLA aipamena销售与市场：营销版．2021,no.9-12. 2021.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.
APA aipamena
(2021). 销售与市场：营销版．2021,no.9-12.
Chicago Style aipamena销售与市场：营销版．2021,no.9-12. 2021.
MLA aipamena销售与市场：营销版．2021,no.9-12. 2021.