The Principle of the Nomograph in Education

Autor:	Almack, John C., Carr, William G.
Zdroj:	The Journal of Educational Research, 1926 Dec 01. 14(5), 340-355.
Databáze:	JSTOR Journals
Externí odkaz:	https://www.jstor.org/stable/27523369 Zobrazit plný text záznamu