Аритметичко-логичка јединица — разлика између измена

* {{Cite book |ref= harv|first=Enoch| last=Hwang| year=2006| title=Digital Logic and Microprocessor Design with VHDL| publisher=Thomson|id=ISBN 0-534-46593-5| url=http://faculty.lasierra.edu/~ehwang/digitaldesign}}

* {{Cite book |ref= harv|first=William| last=Stallings| year=2006| title=Computer Organization & Architecture: Designing for Performance 7th ed| publisher=Pearson Prentice Hall|id=ISBN 0-13-185644-8| url=http://williamstallings.com/COA/COA7e.html}}