不丹民主化运动 O'Brien, Matt. Reporter's Notebook from Bhutan: Crashing the Lost Horizon. Contra Costa Times . 2010-08-29 [2011-09-18]. (原始内容存档于2016-03-04).
四角泳褲,介紹了適合於他們的產品目錄復古樣式,和Speedo在一些南美洲國家(如巴西)再推出更多中等價位的四角泳褲。 Yadegaran, Jessica. Snug suits not for shy beach boys. Contra Costa Times . 2006-06-03. 泳衣 三角泳褲
EBARTsecures last piece of funding for eBART, expect new station in 2018. Contra Costa Times (Digital First Media). January 22, 2015 [November 18, 2015]. (原始内容存档于2016-03-05)
普莱森顿 (加利福尼亚州)(原始内容存档于2012-07-14). Kazmi, Sophia. A Pleasanton surprise: richest midsize city. Contra Costa Times . August 29, 2006 [2008-02-07]. (原始内容存档于2012-11-04). O'Brien, Matt
三谷大学 inShare Four more charged in alleged university scam. Mercury News. Contra Costa Times . [21 March 2013]. (原始内容存档于2016-08-19). Operator of fake Bay Area