Gaya APA

Rogerson, P. (1990). Speaking clearly: pronunciation and listening comprehension for learners of english / Pamela Anderson, judy B. Gilbert . : cambridge university press.

Gaya MLA

Rogerson, Pamela. "Speaking clearly: pronunciation and listening comprehension for learners of english / Pamela Anderson, judy B. Gilbert". : cambridge university press, 1990. Tadris Biologi.