Methodological considerations in the evaluation of differential components of supplementary education programs
1976 ◽
Vol 14
(3)
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pp. 249-250
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2020 ◽
Vol 966
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pp. 012079
1995 ◽
Vol 16
(3)
◽
pp. 166-177
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1974 ◽
Vol 38
(9)
◽
pp. 494-496
1987 ◽
Vol 51
(6)
◽
pp. 305-308
Keyword(s):
1987 ◽
Vol 51
(6)
◽
pp. 280-286
Keyword(s):
1983 ◽
Vol 47
(6)
◽
pp. 360-363
Keyword(s):
1999 ◽
Vol 63
(12)
◽
pp. 867-872
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