Stake's work has become particularly influential in defining the case study approach to scientific enquiry. He has helpfully characterised three major different types of case study: intrinsic, instrumental and collective[8]. An intrinsic case study is usually undertaken to find out about a novel phenomenon. The researcher should really define the https://arthuriyyen.techionblog.com/33088389/the-ultimate-guide-to-hbr-case-study-writing-help