Pora, y. (2003). Develop your vocabulary grammar and idiom. Pustaka Pelajar.
Cita Chicago (17th ed.)Pora, yusran. Develop Your Vocabulary Grammar and Idiom. Pustaka Pelajar, 2003.
Cita MLA (9th ed.)Pora, yusran. Develop Your Vocabulary Grammar and Idiom. Pustaka Pelajar, 2003.
Atenció: Aquestes cites poden no estar 100% correctes.