Khalid, GC Usman (TE-42) Data transmission through sound waves using CDMA Technique / GC Usman Khalid, GC Bilal Khan, PC Fazeel Awan and CSM Aamir Fayyaz (TE-42) - Rawalpindi MCS 2009 - 72 p; Subjects--Topical Terms: UG Projects Subjects--Geographic Terms: TE-42 Dewey Class. No.: 621.382,KHA