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1Publicado 1976New Delhi : University Grants Commission, 1976.47 p. ; 25 cm.
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2Publicado 1977New Delhi : University Grants Commission, 1977.68 p. ; 25 cm.
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3Publicado 1977[Addis Ababa] : United Nations, Economic Commission for Africa, 1977.58, [33] p. : ill. ; 29 cm.
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4Publicado 1976[Jakarta] : Pusat Inovasi dan Teknologi Pendidikan, Badan Penelitian dan Pengembangan Pendidikan dan Kebudayaan, Departemen Pendidikan dan Kebudayaan, [1976]3 v. ; 29 cm.
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5Publicado 1976New Delhi : Indian Adult Education Association, 1976.55 p. ; 22 cm.
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6Publicado 1976New Delhi : Indian Adult Education Association, 1976.43 p. ; 23 cm.
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7Publicado 1976New Delhi : Indian Adult Education Association, 1976.40 p. ; 23 cm.