Secondary data is information that has been collected for a purpose other than your current research project but has some relevance and utility for your research.nternal sources include data that exists and is stored inside your organization. External data is data that is collected by other people or organizations from your organization's external environment.
Royal Mail Contact Number: 0843 504 7203 To contact a Royal Mail advisor phone 0843 504 7203 To speak to a customer service advisor at Royal Mail, phone them at local rate on 0843 504 7203 or 03457 740 740, from 8 am to 6pm Monday-Friday or 8amâ1pm on a Saturday.
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