ENGLISH & LEN, E. [. (1993). English enrichment exercises: Primary 4. Binarupa Aksara.
Chicago Style (17th ed.) CitationENGLISH and Evelyn [ed] LEN. English Enrichment Exercises: Primary 4. Jakarta: Binarupa Aksara, 1993.
MLA引文ENGLISH and Evelyn [ed] LEN. English Enrichment Exercises: Primary 4. Binarupa Aksara, 1993.
警告:這些引文格式不一定是100%准確.