APA-čujuhus (7. p.)

Castillo Sornoza, C. d. C. (2017). How Phonetics influence in the improvement of pronunciation.

Chicago-čujuhus (17. p.)

Castillo Sornoza, Claudina del Carmen. How Phonetics Influence in the Improvement of Pronunciation. 2017.

MLA-čujuhus (9. p.)

Castillo Sornoza, Claudina del Carmen. How Phonetics Influence in the Improvement of Pronunciation. 2017.

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