00000nam 2200000 4500 NUTBA000000000000396 20140321173355.0 979-3021-03-9 0010-031400000000395 Ind 519 519 Riy m Riyanto, Wahyu Hidayat Matematika ekonomi Wahyu hidayat Riyanto cet.5 Malang Universitas muhammadyah 2005. ix,260 hlm. lus. 23 cm. Matematika Ekonomi NBPNMAT 20703664 91102/BPAP-NTB/2014