* Cookson, Catharine. ''Encyclopedia of religious freedom'' (2003) 553pp; [http://books.google.com/books?id=R0PrjC1Ar7gC&dq=%22supreme+court%22+%22free+exercise%22&lr=&as_drrb_is=q&as_minm_is=0&as_miny_is=&as_maxm_is=0&as_maxy_is=&num=30&as_brr=0&as_pt=ALLTYPES excerpts and text search]
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* Cookson, Catharine. ''Encyclopedia of religious freedom'' (2003) 553pp; [https://books.google.com/books?id=R0PrjC1Ar7gC&dq=%22supreme+court%22+%22free+exercise%22&lr=&as_drrb_is=q&as_minm_is=0&as_miny_is=&as_maxm_is=0&as_maxy_is=&num=30&as_brr=0&as_pt=ALLTYPES excerpts and text search]
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* Witte, John. '' Religion and the American constitutional experiment'' (2004) 322 pages [http://books.google.com/books?id=GmXC3SikME4C&dq=%22supreme+court%22+%22free+exercise%22&lr=&as_drrb_is=q&as_minm_is=0&as_miny_is=&as_maxm_is=0&as_maxy_is=&num=30&as_brr=0&as_pt=ALLTYPES excerpt and text search]
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* Witte, John. '' Religion and the American constitutional experiment'' (2004) 322 pages [https://books.google.com/books?id=GmXC3SikME4C&dq=%22supreme+court%22+%22free+exercise%22&lr=&as_drrb_is=q&as_minm_is=0&as_miny_is=&as_maxm_is=0&as_maxy_is=&num=30&as_brr=0&as_pt=ALLTYPES excerpt and text search]