Gaya APA

Alter, J, B. (1977). Learning English for Indonesia [3a] : Workbook for SD (Cet. 1.--). Hongkong: Times Educational.

Gaya MLA

Alter, J., B.. "Learning English for Indonesia [3a] : Workbook for SD". Cet. 1.-- Hongkong: Times Educational, 1977. Text.