APA (7 वां संस्करण) प्रशस्ति पत्र

Halim, S., & Halim, F. (2013). Competitive programming 3: The new lower bound of programming contests (3rd edition.). Lulu.com.

शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र

Halim, Steven, और Felix Halim. Competitive Programming 3: The New Lower Bound of Programming Contests. 3rd edition. Singapore: Lulu.com, 2013.

एमएलए (8वां संस्करण) प्रशस्ति पत्र

Halim, Steven, और Felix Halim. Competitive Programming 3: The New Lower Bound of Programming Contests. 3rd edition. Lulu.com, 2013.