BAPIs or RFCs only

hi all,

I would like to fetch the month names, which BAPI or RFC can i use for that? I do not wish to use MONTH_NAMES_GET as its a function module. I need only BAPIs or RFCs which can fetch me that.

I would also like to get the plant information for a particular vendor, which BAPI or RFC can fetch me that?

Regards

Partha