Bardovi-Harlig, K., & Stringer, D. Variables in second language attrition: Advancing the state of the art.
Chicago Style aipamenaBardovi-Harlig, Kathleen., và David Stringer. Variables in Second Language Attrition: Advancing the State of the Art.
MLA aipamenaBardovi-Harlig, Kathleen., và David Stringer. Variables in Second Language Attrition: Advancing the State of the Art.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.