2 1 10 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