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020 _a0070668833
035 _a528337
039 9 _y08-18-1999
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090 _aLB1028.V3 1979
090 _aLB1028
100 1 _aVan Dalen, Deobold B., 1911-
245 1 0 _aUnderstanding educational research
_ban introduction
_cDeobold B. Van Dalen
250 _a4th ed.
260 _aNew York
_bMcGraw-Hill
_c1979
300 _axii, 547 p. : ill. ; 24 cm.
504 _ap. 531-537.
590 _a1
650 _aEducation
_xResearch
907 _a.b12408165
_b2021-05-28
_c2019-11-12
942 _c01
_n0
_kLB1028.V3 1979
914 _avtls000248317
991 _aF S Kemasyarakatan dan Kemanusiaan
998 _at
_b1999-05-08
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_gxxu
_y0
_z.b12408165
999 _c242089
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