One of the primary sources of law in the field of disability law involves the Americans with Disabilities Act.
There are several journals that have a focus on disability law issues. The Law Library has the Berkeley Journal of Employment and Labor Law (last 3 years in print in the General Collection, all other issues available electronically thorough HeinOnline), Workers' Compensation & Disability Law Reviews (1988-2004 on HeinOnline), and Mental and Physical Disability Law Reporter (1984-2010 on HeinOnline).