Firstly, I would suggest you to complete your text book only. MHT CET 2018 syllabus will be based on class XI and class XII syllabus of Maharashtra State Board of Secondary and Higher Secondary Education. The syllabus of MHT CET 2018 will give 20% weightage to class XI topics and 80% weightage to class XII topics.

Good Luck!
 

Apart, from your text books you can refer to Arihant, Marvel or Target publication.