Santiago, G. (2011). Tracing the roots and reasons of the common errors of students in college algebra. Saint Louis University Research Journal.
Chicago-referens (17:e uppl.)Santiago, George. "Tracing the Roots and Reasons of the Common Errors of Students in College Algebra." Saint Louis University Research Journal 2011.
MLA-referens (9:e uppl.)Santiago, George. "Tracing the Roots and Reasons of the Common Errors of Students in College Algebra." Saint Louis University Research Journal, 2011.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.