KAUL ASHA. (2005). THE EFFECTIVE PRESENTATION. RESPONSE BOOKS.
Chicago Style aipamenaKAUL ASHA. THE EFFECTIVE PRESENTATION. NEW DELHI: RESPONSE BOOKS, 2005.
MLA aipamenaKAUL ASHA. THE EFFECTIVE PRESENTATION. RESPONSE BOOKS, 2005.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.