best costing book foe IPCC?

if you are not taking any coaching follow SHARVANA PRASATH Costing & FM (Padhuka Publications) self study material....or if u joined in any CA coaching for coaching they wil give suffiecient material just follow that..no other books are required....in Pudhuka theory and previous exam questions are designed neetly...which is useful us as quick reference all is in one place...why iam preferring this is i studied and i got 62 marks in costing & FM with that book....

best book for pcc-sp tulsian(author).no need to refer anything else ,complete and more than enough.study and reply.