What to learn
Japenese
Career
Computer
Python: MIT Open course
zelle
Ecomtrcs
John Stachurski
Cassella
Greene
R software
Math
Probability: Degroot
Measure-Based Probability:Dudley
Linear Algebra: David.Lay
Calculus: Stewart
Math Analysis: Spivak/Apostol
Real Analysis: Bartle/Rudin