Baugbog, E. J. (1989). Problem solving in elementary mathematics, grades III, Municipality of Catigbian, 1988-1989: Appraisal in two perspectives.
Chicago-referens (17:e uppl.)Baugbog, Eugenia Jala. Problem Solving in Elementary Mathematics, Grades III, Municipality of Catigbian, 1988-1989: Appraisal in Two Perspectives. 1989.
MLA-referens (9:e uppl.)Baugbog, Eugenia Jala. Problem Solving in Elementary Mathematics, Grades III, Municipality of Catigbian, 1988-1989: Appraisal in Two Perspectives. 1989.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.