(2019). 作文与素材．2019,no.7,9.
Chicago Style aipamena作文与素材．2019,no.7,9. 2019.
MLA aipamena作文与素材．2019,no.7,9. 2019.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.
APA aipamena
(2019). 作文与素材．2019,no.7,9.
Chicago Style aipamena作文与素材．2019,no.7,9. 2019.
MLA aipamena作文与素材．2019,no.7,9. 2019.