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1
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2Published 2001Subjects: “…INVESTIGACION CIENTIFICA…”
Book -
3
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4
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5Published 1991Subjects: “…INVESTIGACION EDUCACIONAL 4114…”
Book -
6
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7
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8
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9Published 1983Subjects: “…INVESTIGACION…”
Book -
10
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11
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12Published 1988Subjects: “…4114 INVESTIGACION EDUCACIONAL…”
Book -
13
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14Published 1981Subjects: “…INVESTIGACION…”
Book -
15
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16
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17
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18Published 1985Subjects: “…INVESTIGACION AGRICOLA…”
Conference Proceeding Book -
19
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20