suggest best publication book n scanner? for CS MOUDLE 1

plz anybody tell the best books for refernce n for preparing module-1....mailnly for costing,company accounts,tax laws.................................................wich publications scanners r better?.............

to get good marks in problematic part in module 1 like costing n tax............wich are the  best books??????

give ur valuable suggestions,tips,and opinions plz....it is very urgent.....................