na INLIS000000000015014 20130612110308 Ind 010-061300000015014 Ind 652.1 652.1, Sug s Sugiyanto, Bambang tri Surat Menyurat Perusahaan, Bambang Tri Sugiyanto 1989 Semarang vi,46 Hlm, 19 cm Surat Lamran NBPNMAT