How many countries and regions are there in asia?

I gonna use on my research...pls answer it or:I gonna use on my research...pls answer itor:According to my sources there are 53 countries in Asia an

I gonna use on my research...pls answer it

or:I gonna use on my research...pls answer it

or:According to my sources there are 53 countries in Asia and 4 regions China,Japan,Korea & south east Asia i hope this is helpful.

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