na INLIS000000000005637 20171121020632 0010-1117001501 ta 171121 0 ind 621.381 621.381 RAY r Rayyan Ahmad Badwilan Rahasia Dibalik Hand-Phone / Rayyan Ahmad Badwilan Cet. 1 Jakarta : Dar Thuwaiq Li An-Nasyr wa At-Tauzi, 2004 168hlm ; 17,5 Cm teknik elektronika Bib, 167 0431/PERPUSHST/2008