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1von: Tangijtprom, Nopphon
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2
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3von: David G. McMillan
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4von: Killins, Robert N.
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5
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6von: Aliyu, Abubakar Biu
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7
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8von: Pitambar Lamichhane2023, in: Journal of Mathematics Instruction, Social Research and Opinion
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9
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12
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15
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16von: Douglas, Alan V. S.
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20