na INLIS000000000021196 20141117132420.0 $a 978-979-9108-84-5 $0010-111400000000037 $a 621 ERW a C.3 $a 621 ERW a C.3 $a Erwin Adi Putranto $a Seri Prof. Ensto Magnet dan Listrik $a Semarang $b PT. Sindur Press $c 2007 $a Arpus Kab. Magetan $a 55.864