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Casio announces World's First Standard Scientific Calculator Equipped with a Spreadsheet Function - Fareastgizmos
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Original Scientific Calculator FX-991EX 552 Function Solar+Battery Same as Texbook Spreadsheet multi-function Calculator | Lazada PH
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Casio FX-991EX Original Scientific Calculator Classwiz 552 function Spreadsheet 4971850092315 | eBay
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