Gaya APA

Suharsih, S. (2011). Learning How to Ask, Give and Refuse Opinion and to Express Likenes and Dislikeness . Jakarta Timur: CV. Citraunggul Laksana.

Gaya MLA

Suharsih, Siti. "Learning How to Ask, Give and Refuse Opinion and to Express Likenes and Dislikeness". Jakarta Timur: CV. Citraunggul Laksana, 2011. Text.