CS301: Computer Architecture. Unit 3. Saylor Academy, 2010. License: CC BY: Attribution.
Bergmann, Seth D. (2018). Section 6.1 and Section 6.2. Computer Organization with MIPS. License: CC BY
Tarnoff, David. (2020). Episodes 4.01, 4.02, 4.03, 4.04, 4.05, 4.06, 4.07, 4.08, 4.09, 4.10, 5.01, 5.02, 5.03, 6.01, 6.02, 6.03, 6.04, 6.05, 6.06, and 6.07. Computer Organization and Design Fundamentals Series. License: CC BY