Primary vs Secondary Data: Difference between them with definition and comparison chart - YouTube
Ex 14.1, 2 - Classify the data in Q1 above as primary - Ex 14.1
Catherine Hakim, Secondary Analysis in Social Research: A Guide to Data Sources and Methods with Examples, Allen & Unwin, 1982, 202 pp. £5.95. | Journal of Public Policy | Cambridge Core
Primary and Secondary Data - Corbettmaths - YouTube