APA ציטוט

Sitorus, L. (2004). WINDOW ON THE WORLD English for SMA Year 1. Erlangga.

Chicago Style (17th ed.) Citation

Sitorus, Lungguk. WINDOW ON THE WORLD English for SMA Year 1. Erlangga, 2004.

ציטוט MLA

Sitorus, Lungguk. WINDOW ON THE WORLD English for SMA Year 1. Erlangga, 2004.