By Lutzer Carl V.   Marengo James E.   in The College Mathematics Journal

ISSN:1931-1346|37|5|364-369

Mathematical Association of America‎(2006)‎

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By Agarwal Anurag   Marengo James E.   Romero Likin Simon C.   in The College Mathematics Journal

ISSN:1931-1346|44|3|210-219

Mathematical Association of America‎(2013)‎

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By Hart David S.   Marengo James E.   Narayan Darren A.   Ross David S.   in The College Mathematics Journal

ISSN:1931-1346|39|2|139-141

Mathematical Association of America‎(2008)‎

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