Radio's role in popular education.
Valderrama
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D000569:Americas; D003105:Colombia; D003142:Communication; D003710:Demography; D003906:Developing Countries; D004493:Education; D005069:Evaluation Studies as Topic; D007843:Latin America; D008402:Mass Media; D010568:Peru; D011153:Population; D011154:Population Characteristics; D011845:Radio; D012424:Rural Population; D013020:South America
Americas; Broadcast Media; Colombia; Communication; Demographic Factors; Developing Countries; Education; Educational Activities; Evaluation; Latin America; Mass Media; Peru; Population; Population Characteristics; Radio; Rural Population; South America