na INLIS000000000000053 20251029071748 0010-1025000039 Surat -Surat Bisnis / Aulia Gunawan Aulia Gunawan 1 172 hlm. ; 22,5cm. Yogyakarta : Best Publisher, 2009. 651.6 651.6 AUL s 9789791981781 Aulia Gunawan 1742 1743 1744 1745