APA引文

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

芝加哥风格引文

UMAR, AHMAD SYAIFUL. HOTSPOT BILLING SYSTEM. 2010.

MLA引文

UMAR, AHMAD SYAIFUL. HOTSPOT BILLING SYSTEM. 2010.

警告：这些引文格式不一定是100％准确.