(2019). 党 课．2019,no.1-2,4,12.
Chicago Style aipamena党 课．2019,no.1-2,4,12. 2019.
MLA aipamena党 课．2019,no.1-2,4,12. 2019.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.
APA aipamena
(2019). 党 课．2019,no.1-2,4,12.
Chicago Style aipamena党 课．2019,no.1-2,4,12. 2019.
MLA aipamena党 课．2019,no.1-2,4,12. 2019.