au.\*:("PENLAND PR")
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COMMUNICATIONS AND LEARNING BEHAVIOUR: SELECTED REFERENCES. V.PENLAND PR.1977; LIBRARY SCI. SLANT DOCUMENT.; INDIA; DA. 1977; VOL. 14; NO 1; PP. 46-51Article
CONTINUING EDUCATION IN A PROBLEM SOLVING MODELPENLAND PR.1975; SPEC. LIBRAR.; U.S.A.; DA. 1975; VOL. 66; NO 2; PP. 55-60; BIBL. 4REF.Article
