6 1 10 Kabul Pamin Additional Author Daswir Additional Author Z. Poeloengan Additional Author Adlin U. Lubis Additional Author Dj. Pardede Additional Author PPKS Additional Author Kusnu Martoyo Additional Author Rachmat Adiwiganda Additional Author Hasril Hasan Siregar Additional Author Amir Purba Additional Author Angga Jatmika Additional Author Petrus Purba Additional Author P.L. Tobing Additional Author Adiwiganda, Y. Taryo Additional Author Sjukri Hamid Additional Author C.U. Ginting Additional Author H. Wibowo Additional Author mixed material 08532141 Medan Pusat Penelitian Kelapa Sawit (PPKS) 1996 cover_warta_vol4no3.jpg Daswir Primary Author Pusat Penelitian Kelapa Sawit (PPKS) Additional Author Pamin, Kabul Primary Author POELOENGAN, Z Primary Author Djamin, Arifin Primary Author Purba, Petrus Primary Author Naibahao, P. M. Primary Author Hutomo, Tri Primary Author mixed material 08532141 Medan Pusat Penelitian Kelapa Sawit (PPKS) 1995 Cover_Warta_PPKS_Vol_3_No_2.jpg Daswir Additional Author Z. Poeloengan Additional Author Adlin U. Lubis Additional Author Pusat Penelitian Kelapa Sawit (PPKS) Additional Author PUSAT PENELITIAN KELAPA SAWIT Primary Author POELOENGAN, Z Primary Author Djamin, Arifin Primary Author Purba, Petrus Primary Author Naibahao, P. M. Primary Author Hutomo, Tri Primary Author mixed material 08532141 Medan Pusat Penelitian Kelapa Sawit (PPKS) 1995 cover_warta_vol3no1.jpg Daswir Additional Author LALANG BUANA Additional Author Tjahjono Herawan Additional Author Condro Utomo Additional Author A. Razak Purba Additional Author Gale Ginting Additional Author Fatmawati Additional Author A.Sipayung Additional Author Indra E. Setiyo Additional Author Rolettha Y.Purba Additional Author Ponten M.Naibaho Additional Author mixed material Medan Pusat Penelitian Kelapa Sawit 1994 IMG_20190201_0001.jpg Daswir Additional Author LALANG BUANA Additional Author Dwi Asmono Additional Author DARNOKO Additional Author A. Razak Purba Additional Author Fatmawati Additional Author A.Sipayung Additional Author SOEMARTONO Additional Author Nasrullah Additional Author Tri Hutomo Additional Author Rachmat Adiwiganda Additional Author Zulkarnain Poeloengan Additional Author Akiyat Additional Author A.D. Koedadiri Additional Author A.U. Lubis Additional Author P.Purba Additional Author R.A.Lubis Additional Author Alex Hartana Additional Author Edi Guhardja Additional Author Sudirman Yahya Additional Author L.A. Napitupulu Additional Author G.Ginting Additional Author J.Brahmana Additional Author Iswandi Anas Additional Author mixed material Medan Pusat Penelitian Kelapa Sawit 1993 IMG_20190201_0001.jpg Daswir Additional Author mixed material Medan Fak. Ekonomi UISU, IPWI 1993