I am going through the MIT OCW on Linear Algebra [18.06] by Gilbert Strang. The problems which they have on the site are all references to Gilbert Strang's book on Linear Algebra. I cannot buy the book as of now. However, I have got hold of a copy of a book called Linear Algebra by Hoffmann and Kunze. After some searching through earlier posts I see that it is a standard text for LA. Can I use this book as a reference and do problems from there or do you recommend something else?