Amazon.com : Upgraded 991ES Plus Scientific Calculator, ROATEE Professional Scientific Calculators with Erasable LCD Writing Tablet, Solar and Battery Dual Power,Desktop Calculator with Notepad for Office, School : Office Products
Amazon.com : Casio fx-300ESPLUS2 2nd Edition, Standard Scientific Calculator, Black : Office Products
Amazon.com : Casio fx-991ES Plus 2 Scientific Calculator with 417 Functions and Display, Natural : Office Products
Amazon.com : Casio FX-991ES Plus Scientific Calculator Fx 991 Es - New & Sealed ship to world wide : Office Products
Amazon.com : Casio fx-300ES PLUS Scientific Calculator; SAT Compatible; Natural Textbook Display; Math, Trigonometry, Statistics, Algebra, Geometry and Physics Functions; Comes with Slide-on Hard Case; Black : Office Products