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เกล็ดหิมะค็อค (MyMaths44)

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บทความตีพิมพ์ในนิตยสาร My Maths 44 เรื่องเกล็ดหิมะค็อค

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MY MAIHS s€pe.b.' ,oos 41

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44 MY ,{ATHS s"Bsse, 2oo3