na INLIS000000000021197 20141117132625.0 $a 978-979-9108-84-5 $0010-111400000000038 $a 621 ERW a C.2 $a 621 ERW a C.2 $a Erwin Adi Putranto $a Seri Prof. Ensto Magnet dan Listrik $a Semarang $b PT. Sindur Press $c 2007 $a Arpus Kab. Magetan $a 55.863