Nkwanga, Eileen B. <br/><br/>
A review of African research into Piaget's concrete-operational stage, and its relevance to curriculum planning in Zambia. 

<br/><br/> Photocopy. 
<br/><br/>Thesis (M.Ed.)--University of London, 1977. 
<br/><br/>Includes bibliographical references. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Child study.