Siau, K. L. (1990). A visual knowledge query language for the enhanced-ER model.
Chicago Style (17th ed.) CitationSiau, Keng Leng. A Visual Knowledge Query Language for the Enhanced-ER Model. 1990.
MLA (8th ed.) CitationSiau, Keng Leng. A Visual Knowledge Query Language for the Enhanced-ER Model. 1990.
Warning: These citations may not always be 100% accurate.