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201
-
202
-
203
-
204
-
205
CLEP a factor in the improvement of educational administration
Gepubliceerd in Education Quarterly (1958)Artikel -
206
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207
-
208
-
209
Educational engineering promoting adaptability in the schools of the Philippines
Gepubliceerd in 1954Boek -
210
Educational engineering promoting adaptability in the schools of the Philippines
Gepubliceerd in 1954Boek