APA (7th ed.) Citation

Sihombing, P. (2010). Keyword Competition Approach In Ranked Document Retrieval.

Chicago Style (17th ed.) Citation

Sihombing, Poltak. Keyword Competition Approach In Ranked Document Retrieval. 2010.

MLA (9th ed.) Citation

Sihombing, Poltak. Keyword Competition Approach In Ranked Document Retrieval. 2010.

Warning: These citations may not always be 100% accurate.