Elisabeth Murray, Steven Wise, Kim Grahatle=The Evolution of Memory Systems: Ancestors, Anatomy, and Adaptations (2016). 〈Chapter 1: The History of Memory Systems〉. 《The Evolution of Memory Systems: Ancestors, Anatomy, and Adaptations》 1판. Oxford University Press. 22–24쪽. ISBN9780191509957. 2017년 3월 12일에 확인함. CS1 관리 - 여러 이름 (링크)