Wier Ritonga text Surabaya Muara Karya 2019 ind 360 hlm ; 25 cm. Wier Ritonga Kewirausahaan 338.04 338.04 WIE k 978-602-53690-6-3 260423 20260423094329 INLIS000000000002033 Converted from MARCXML to MODS version 3.5 using MARC21slim2MODS3-5.xsl (Revision 1.106 2014/12/19)