An Exploratory Investigation of the Effect of Certain Selected Factors upon Performance of Sixth-Grade Children in Arithmetic

Autor:	Bouchard, John B.
Zdroj:	The Journal of Experimental Education, 1951 Sep 01. 20(1), 105-112.
Databáze:	JSTOR Journals
Externí odkaz:	https://www.jstor.org/stable/20153872 Zobrazit plný text záznamu