Hey below I have given you the list of some of the best books to prepare for the APICET exam so you can have a look

1. Analytical Ability

Reasoning R.S.Agarwal

Time Material

2. Mathematical Ability

Tables Book

6th Standard to 10th Standard Mathematics Books state level syllabus

Quantitative Aptitude R S Agarwal

G S R Book for ICET (G S R Pulications)

Quicker Maths

3. Communication Ability

Word Power made easy for Vocabulary

Wren & Martin for English Grammar

English Novels & Tales for Reading Comprehension

Daily News Paper Business column for Business Terminology

As far as computers are concerned, one must read newspapers and any Institute Material.