APA引文

Purba, A. Z. U. (2005). Hak Kekayaan Intelektual Pasca Trips. Alumni.

Chicago Style (17th ed.) Citation

Purba, Achmad Zen Umar. Hak Kekayaan Intelektual Pasca Trips. Alumni, 2005.

MLA引文

Purba, Achmad Zen Umar. Hak Kekayaan Intelektual Pasca Trips. Alumni, 2005.

警告：這些引文格式不一定是100％准確.