Assignment 7. Which of the following concepts are: (a) external sources, (b) internal sources of secondary information in marketing research:

- reports of sales personnel of the organization itself;

- data from international organizations, government, official statistics;

- budget reports;

- marketing research data;

- scientific research conducted by specialized marketing organizations;

- information from exhibitions and fairs, conferences and meetings;

- reviews of consumer complaints;

- scientific research collected by various organizations (chambers of commerce, trade associations, etc.).