* Trends in Biotechnology Volume 28, Issue 7, July 2010, Pages 363-370

" Pages 28, 226 ", The Mathematical Universe: An Alphabetical Journey Through the Great Proofs, Problems and Personalities, ISBN 0-471-17661-3.

The Way of Sacrifice: The Rajputs, Pages 28 – 30, Graduate Thesis, South Asian Studies Department, Dr. Joseph T. O ' Connell, Professor Emeritus, University of Toronto, Toronto, Ontario Canada.

28 from the Prime Pages

Eric Butler and the League of Rights ,' in Dissent, No. 27, Autumn, Pages 28 – 43.