Source: https://www.amazon.com/Couples-Therapy-Workbook-Kathleen-Mates-Youngman/dp/1937661466/ref=pd_sbs_14_4?_encoding=UTF8&pd_rd_i=1937661466&pd_rd_r=3DJXY0FV12HXSP9CPYBF&pd_rd_w=dwWor&pd_rd_wg=IjKYg&psc=1&refRID=3DJXY0FV12HXSP9CPYBF