Textbooks:

Essentials of Abnormal Psychology: https://socialsci.libretexts.org/Bookshelves/Psychology/Book%3A_Essentials_of_Abnormal_Psychology_(Bridley_and_Daffin) 
Lumen Abnormal Psychology: https://courses.lumenlearning.com/hvcc-abnormalpsychology/

Other assigned readings:

APA Case Studies: https://div12.org/case-studies/
Psychology Today: https://www.psychologytoday.com/us

Hypothes.is

https://web.hypothes.is/