User manual Casio FX-82 Solar (English - 38 pages)
fx-82ESPLUS | Non programmable | scientific calculator | CASIO
Casio fx-82MS Memory and Variables - YouTube
Virtual Museum of Calculators
CASIO fx-82 SUPER. I bought it in 1.992, use it in college, at the university and 20 years more at the office. Never changed battery and im not going to retire it