Many  determiners  are also pronouns , and it's important to understand the difference.

determiner  occurs at the beginning of a noun phrase and in some way qualifies the rest of the noun phrase. A determiner cannot exist alone:

  • Those  classic songs were great.
  • My car  is the big one.

pronoun  can take the place of a whole noun phrase:

  • Those  were great classic songs.
  • Those  were great.
  • Mine  is the big one.

Most determiners and pronouns are exactly the same word: either (determiner) and either (pronoun)

A few determiners and pronouns are close but not exactly the same: my (determiner) and mine (pronoun)

Here are some examples of determiners that have a pronoun equivalent:

determinerspronouns
demonstratives
this, that
these, those
this, that
these, those
quantifiers
some, anysome, any
nonone
many/muchmany/much
enough, severalenough, several
more, mostmore, most
either, neithereither, neither
eacheach
all, half, bothall, half, both
possessives (see full list below)
my/his etcmine/his etc
interrogatives
what, which, whosewhat, which, whose

Here is a full list of possessive determiners and pronouns:

determinerspronouns
possessives
mymine
youryours
his
her
its
his
hers
its
ourours
theirtheirs

sources : Original Link