Derivations of mathematical formulas with the use of the area board

Bibliografische gegevens
Hoofdauteur:	Labrador, Feliciano Inoferioo 1945-
Formaat:	Thesis
Taal:	English
Gepubliceerd in:	1972
Onderwerpen:	Mathematical models. Mathematics > Formulae. Mathematics > Study and teaching (Elementary) > Philippines. Teaching > Philippines > Aids and devices.