Prashant,
Let me see if I have this right. You DON'T want information quoted from performance assistant. You DON'T want information quoted from F1 help. You DON'T want information quoted from help.sap.com.
95% of what I know about SAP, I learned using these sources. I guess your standards are a lot higher than mine. These are normally the FIRST place I look when I have a question about SAP.
I wish I knew some better sources of SAP information, but I confess that I don't. Anyhow, here are some other ways to get info that are not on your 'exclusion list', perhaps one of these will be satisfactory to you.
Another good source of SAP information
Yet another good source of SAP information
And another good source of SAP information
Best Regards & Good Luck!
DB49