Hello,

Every college under university or private university or autonomous college has it's own curriculum and  syllabus based on these the textbooks for the students will be prescribed by the respective institutes. There are several textbooks written by different authors and different publications. So based on the curriculum and syllabus of your college reference books and textbooks will be prescribed and it might differ from one college to another. What you can do is reach out to your professors and request them to help you with the textbooks and reference books you need to study and you can buy them or search them your college library.