Hi dear,

If you are referring to School of open learning , University of Delhi, then I'll like to tell you that SOL DU provided books in both hard copy and on official website. If you have not received the books still then you can visit the university for enquiry.

Moreover, you can visit the following link to study online:

Reading/Study Material - https://sol.du.ac.in/info/cbcs-resources

Video Lectures - https://sol.du.ac.in/info/additional-referral-material

e-Pustakdwar - https://sol.du.ac.in/epustakdwar/index.php/en/

Good Luck