This Wikibook is written by Wikibookians who were inspired by other books. The list is provided below.

1. J. K. Hunter and B. Nachtergaele (2001) Applied Analysis World Scientific Publishing, Singapore
2. W. Rudin (1953) Principles of mathematical analysis. 3ed. McGraw-Hill Inc. New York
3. David A. Sprecher (1970) Elements of Real Analysis Dover Publications, Mineola, New York
4. R.G. Bartle, D.R. Sherbert, (2000) Introduction to Real Analysis 3ed. John Wiley & Sons
5. M. Longo, V. Valori, The Comparison Test — Not Just for Nonnegative Series, Mathematics Magazine, Volume 79, Number 3, June 2006, pp. 205-210(6)
6. Spivak, Michael (2008). Calculus (4^th ed.). PMB 377, 1302 Waugh Drive, Houston, Texas: Publish or Perish, Inc. ISBN 978-0-914098-91-1.{{cite book}}: CS1 maint: location (link)Category:CS1 maint: location