CA final advanced management accounting

Dear Friend,

                             I do self study. I am very much confused about which book to follow to obtain good marks , at least 70% in Ca final Advanced management Accounting paper( Costing),.Someone suggest Vashist Saxena, some say Paduka. Among this two which would be the best book for self study and to obtain high marks in Ca final costing paper.( Advanced management Accounting). Also good conception required .

                 Please suggest me the right book to follow, since i do not take tution and only do self study. If there is any other book other rhan above said books you can also suggest such books.

                      At the end i wish to score high marks in Advanced managenet accounting papre, So pls guide me.

    I would remain evergrateful to you for this help.

Yours Faithfully,

Swarup Datta