ond, Indiana. සම්ප්‍රවේශය April 16, 2007.↑ 4.0 4.1 Benman, Keith (April 1, 2007). "Region's first free expressway built in 'another time' ". The Times of Northwest Indiana. Munster, IN. සම්ප්‍රවේශය April 3, 2007.↑ Staff. "Facts & Photos". Indiana Department of Transportation. සම්ප්‍රවේශය August 3, 2011.↑ 6.0 6.1 Indiana State Highway Department (1963). Official Indiana State Map [map], 1963–64 edition. Cartography by ISHD.    Retrieved April 16, 2007.↑ DX Oil. Dimapco Indiana State Map [map], 1960s edition. Cartography by Dimapco.    Retrieved April 16, 2007.↑ Staff. "Frank Borman". Borman Expressway Reconstruction Project. Indiana Department of Transportation. March 28, 2007 දින මුල් පිටපත වෙතින් සංරක්ෂණය කරන ලදී. සම්ප්‍රවේශය March 18, 2007. {{cite web}}: Unknown parameter |deadurl= ignored (|url-status= suggested) (help)↑ Staff. "About the Borman Expressway Reconstruction Project". Borman Expressway Reconstruction Project. Indiana Department of Transportation. March 27, 2