SITUMORANG, JOHNNY W text Jakarta Esensi 2011 ind xvi, 540 hlm. ; 21 cm / Jonny W. Situmorang, M.S; Editor Niken Hananti, Daniel P. Purba Bibliografi: hlm 529-535. Indeks Investasi 332.6 978-979-099-103-3 ACPDBAN 170309 20150123154100.0 INLIS000000000000413 Converted from MARCXML to MODS version 3.5 using MARC21slim2MODS3-5.xsl (Revision 1.106 2014/12/19)