I would suggest you A complete study package for MCA entrances- Arihant publication , Amit Aggarwal




It Is sufficient and covers everything.




Start from the very Basic to make your base strong,Learn each type of problems and their techniques of solving, work on Quantitative aptitude and practice the previous years papers.




you can also check few papers and books  here :





https://dqxeclau.top/download/ebooks-and-sample-papers







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