na INLIS000000000018860 20190423103504 0010-0419000542 ta 190423 0 ind 978-602-245-020-7 910/859 8 910/859 8 SIR k Siringoringo, ROB Kenapa keturunan O.T. Situmorang disebut sipitu ama / ROB Siringoringo Medan : Mitra, 2012 68 hlm. : Ilus. ; 21 cm. Situmorang - Silsilah Marga 241/Hd/2017