-957 Simon P Ginting11 C.R.W.SPEDDING11 Sorimuda Nasution7 Simon P Ginting, Andi Tarigan6 SP Ginting5 Simon Petrus Ginting4 S Nasution3 KISTON SIMANIHURUK, KOMANG G WIRYAWAN, SIMON P Ginting3 Dr.Simon Petrus Ginting M.Sc3 Budi Winarto ; Ani Kusumaningsih ; Djajeng Sumangat ; Markus anda ; Mohammad Takdir Mulyadi ; Nuning Argo Subekti ; Sukarman ; Suparlan2 Sutrisno2 Andi Tarigan, L Abdullah, SP Ginting, IG Permana2 Simon P Ginting, RANTAN Krisnan, Kiston Simanihuruk2 Rantan Krisnan, SP Ginting2 Simon P Ginting, Jenny Elisabeth2 SIMON P Ginting, A Tarigan, R Krisnan2 FERA Mahmilia2 Syafruddin Nasution, David Roberts2 LP Batubara, R Krisnan, SP Ginting, J Sianipar2