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The very first Graphing Calculator with a Color Display – CASIO CFX 9850 Review — Wenting's Web Page
User manual Casio CFX-9850GC Plus (English - 486 pages)
Casio CFX-9850 serial link to PC. | Barrowbiker's Blog
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Casio CFX-9850 serial link to PC. | Barrowbiker's Blog
Casio 9850 series - Wikipedia
