Hi,
Welcome to SAP Business one forum. Please refer below link for study guide:
http://sapbusinessoneacademy.com/wp-content/uploads/2013/01/SBO88Studyguide.pdf
Also refer SAP help file http://help.sap.com/saphelp_sbo882/helpdata/en/b1/8fe14910cf46b9b2ff2de2f315e5a2/frameset.htm
Hope helpful.
Thanks & Regards,
Nagarajan