Dunkel, P., & Lim, P. L. (2006). Intermediate listening comprehension: Understanding and recalling spoken English (3rd ed.). Thomson Heinle.
Lua i Stíl Chicago (17ú heag.)Dunkel, Patricia, agus Phyllis L. Lim. Intermediate Listening Comprehension: Understanding and Recalling Spoken English. 3rd ed. Boston: Thomson Heinle, 2006.
Lua MLA (8ú heag.)Dunkel, Patricia, agus Phyllis L. Lim. Intermediate Listening Comprehension: Understanding and Recalling Spoken English. 3rd ed. Thomson Heinle, 2006.
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