(2015). 统计与决策．2015,no.17,19.
Chicago Style aipamena统计与决策．2015,no.17,19. 2015.
MLA aipamena统计与决策．2015,no.17,19. 2015.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.
APA aipamena
(2015). 统计与决策．2015,no.17,19.
Chicago Style aipamena统计与决策．2015,no.17,19. 2015.
MLA aipamena统计与决策．2015,no.17,19. 2015.