APA引文

UMAR, A. S. (2010). HOTSPOT BILLING SYSTEM.

Chicago Style (17th ed.) Citation

UMAR, AHMAD SYAIFUL. HOTSPOT BILLING SYSTEM. 2010.

MLA引文

UMAR, AHMAD SYAIFUL. HOTSPOT BILLING SYSTEM. 2010.

警告：這些引文格式不一定是100％准確.