Daniel, D. T. (1982). Secondary certificate mathematics (2nd ed.). Nelson House.
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Chicago-čujuhus (17. p.)
Daniel, D. T. Secondary Certificate Mathematics. 2nd ed. Nairobi: Nelson House, 1982.
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MLA-čujuhus (9. p.)
Daniel, D. T. Secondary Certificate Mathematics. 2nd ed. Nelson House, 1982.
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