Where to find samples for OAS4.0 / PL/SQL cartridge

Could any one working on Oracle application server 4.0 suggest some sites to get info on PL/SQL cartridge (htp package etc) ? Any idea about some good boks on this.

Thanks

-----------== Posted via Deja News, The Discussion Network ==---------- http://www.dejanews.com/ Search, Read, Discuss, or Start Your Own Received on Fri Dec 18 1998 - 11:01:37 CST