Gaya APA

Alter, J. (1991). Guided english skills : compositin, comprehension, vocabulary use of english (primary 1) / J.B. Alter . Jakarta: Binarupa Aksara.

Gaya MLA

Alter, J.B. "Guided english skills : compositin, comprehension, vocabulary use of english (primary 1) / J.B. Alter". Jakarta: Binarupa Aksara, 1991. Text.