National Council of Teachers of Mathematics. (1994). Teaching children mathematics. National Council of Teachers of Mathematics.
শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতিNational Council of Teachers of Mathematics. Teaching Children Mathematics. Reston, Va: National Council of Teachers of Mathematics, 1994.
M.L.A (9 ম সংস্করণ) উদ্ধৃতিNational Council of Teachers of Mathematics. Teaching Children Mathematics. National Council of Teachers of Mathematics, 1994.
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