This video is about seven types of case study research design. This video explains when you have to choose case study and how many cases you have to choose, single, multiple, retrospective and longitudinal. Then there is brief description of explanatory, exploratory, descriptive, single, collective, instrumental and intrinsic case studies with examples.
For detail you may consult following sources References https://digitalcommons.uri.edu/cgi/vi… https://www.researchgate.net/publicat… https://www.researchgate.net/publicat…