BibTeX, biblatex and biber ⇒ How to remove the number in the context when using BIBTEX?

[ychao]

Dear all,

I am using BIBTEX generating the bibliography now. But there is one issue: whenever I generate bibliography, there is a number next to the paper I cite in the context. For instance, "Smith (1989) (1)". What I'd like to have is "Smith (1989)".

Is there any suggestions on how I can fix it?

Thanks in advance.