Searching in these databases of scholarly materials is a great way to find secondary sources:
The Sallie Bingham Center for Women's History and Culture staff are super human resources for primary materials like women-created artists books in their collection, housed in the Rubenstein Library on the third floor of Perkins.
Danette Pachtner is the Women's Studies Librarian, based in Lilly Library. Feel free to contact her for help in finding sources; you can schedule an appointment here.
To find books on specific topics, use subject headings like these:
Feminism
Feminism -- United States
Feminism and art
Feminist theory
Women's rights
Women's rights -- United States -- History
Women artists
Women in art