The learning and teaching of number : paths less travelled through well-throdden terrain 
Zazkis, Rina. 
 -  Routledge,  2021 
 - ix, 218 pages 
978-1-13835346-6
Number theory. -- Study and teaching.
512.7071 Z397 2021
                        978-1-13835346-6
Number theory. -- Study and teaching.
512.7071 Z397 2021