Different information sources are used in different ways in different disciplines.
cutting edge developments, then you would probably go to a journal article.
likely to go to a film or even a book to get the same information.
then they would be best off going to a piece of legislation or a law report.
statistics and download a dataset from there to get that information.
depending on the discipline that you're looking at.
in a sense that it is the most authority of source that you would use.
the closest to the event that actually happened.
Whereas, a secondary source might be something that describes that event.
the type of document that they would use might be quite different.
actually organize the primary or secondary sources in some way.
different types of information that you use and you just use it in different ways.
some background information, you'd be more likely to go to a textbook.
that would give you an idea about the general context of research around cancer.
maybe different types of treatment for cancer.
forth with different journal articles.
sites where a lot of these debates are happening, as well.
is the lecturer that is providing the information to you.
and that can often be a good starting point for you.
They might even suggest a textbook.
what type of assignment it is, and that is some way that you can start with.
well and look at those types of sources that they refer to.