The primary CO-OP publication is the following book:
Polatajko, H. J., & Mandich, A. (2004). Enabling occupation in children: The Cognitive Orientation to daily Occupational Performance (CO-OP) approach. Ottawa, ON: CAOT Publications ACE.
It is available from the CAOT store.
In addition, there are numerous peer-reviewed articles and book chapters published about CO-OP. Please feel free to consult our selected CO-OP approach publications list for more information.
Alternatively, you may generate a list of published articles about CO-OP through PubMed or search some of the most recent CO-OP approach related publications and subscribe to receiving email alerts via Google scholar.