EA Research: Notes On Classification & Indexing Theory
<http://www.digitallantern.net/school/ranganathan.htm>

Glossary: Faceted Classification Terminology
<http://facetmap.com/glossary/index.jsp>

Louie,Aaron, and Eric Maddox and William Washington."Using Faceted Classification To Provide Structure Information Architecture." Proceedings of ASIS&T 2003 Information Architecture Summit Portland, Oregon. March 21-23, 2003.
<http://depts.washington.edu/pettt/presentations/conf_2003/IASummit.pdf>.

Pruiett , Margaret. Dr. S. R. Ranganathan. 3 December 1999 .
<http://www.easylibsoft.com/SRR.htm>

Shiyali Ramamrita Ranganathan. Bogliolo . 26 January 2001.
<http://w3.uniroma1.it/vrd/mathematics/i-ranganathan.html>

Stekel, Mike. Ranganathan for IAs : An Introduction to the Thought of S.R. Ranganathan for Information Architects. Boxes And Arrows. October 7, 2002.
<http://www.boxesandarrows.com/archives/ranganathan_for_ias.php>

A Tribute to Prof. S.R. Ranganathan. October 21 2003. <http://drtc.isibang.ac.in/DRTC/srr/index.htm>