Bilal Majid DTMF based disaster management system using sensors Bilal Majid & Zuhaib Naseer - Islamabad : NUST School of Electrical Engineering & Computer Science, 2009. - 107 p. : ill. ; 27 cm + CD-ROM Supervisors : Dr. Nazar Abbas Saqib, Mr. Saqib Rizwan. Dewey Class. No.: 004