Approaches to qualitative research in mathematics education :  examples of methodology and methods / 
Angelika Bikner-Ahsbahs, Christine Knipping, Norma C. Presmeg, editors. 
 - xv, 592 pages :  illustrations ;  24 cm. 
<br/><br/>Bibliography : page 537-575. 
<br/><br/><label>ISBN: </label>9789401791809  RM354.95 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mathematics--Study and teaching--Research.<br/>Mathematics--Research.<br/>Qualitative research.