BB Burton, David M.. Elementary number theory / David M. Burton . 7th ed., international ed. New York : McGraw-Hill Education, 2011
BB Navarro, Gabriel. Un curso de Números. Valencia: Publicaciones de la Universidad de Valencia. 2006
BB Nicolaides, A.. Complex Numbers"(Success in Pure Mathematics). Private Academic & Scientific Studies Ltd; 2007
BB Shockley, James E. Introduction to number theory / [by] James E. Shockley New York : Holt, Rinehart and Winston, [1967]
BC Hungerford, Thomas W.. Algebra / Thomas W. Hungerford New York[etc] : Springer-Verlag, cop. 1974
BC Silverman J.H.. A Friendly Introduction to Number Theory. Pearson Education, Inc. 2012
BC Stewart, Ian. The foundations of mathematics / Ian Stewart and David Tall Oxford ; New York : Oxford University Press, 2000