6 1 10 Z. Poeloengan Additional Author Pusat Penelitian Kelapa Sawit (PPKS) Additional Author S. Rahutomo, Arsyad D. Koedadiri Additional Author Syamsul Anwar, Petrus Purba Additional Author Eka Nuryanto, Enny Ratnaningsih, Herri Susanto Additional Author Donald Siahaan, Jenny Elisabeth, Tri Haryati, Purboyo Guritno, Yuniarti Yusak Additional Author Renni Yuliasari, Darnoko, Klaus Wulfert, Waldemar Gindulis Additional Author mixed material 08532141 Medan Pusat Penelitian Kelapa Sawit (PPKS) 2001 cover_warta_vol9no2.jpg Z. Poeloengan Additional Author Pusat Penelitian Kelapa Sawit (PPKS) Additional Author PPKS Additional Author Donald Siahaan Additional Author Tri Haryati, Donald Siahaan, Jenny Elisabeth Additional Author J. Elisabeth, Tj. Herawan, D. Siahaan, P. Guritno Additional Author T. Haryati, J. Elisabeth, D. Siahaan, Darnoko Additional Author Donald Siahaan, Jenny Elisabeth, Tri Haryati Additional Author Jenny Elisabeth, Tri Haryati, Donald Siahaan Additional Author mixed material 08532141 Medan PPKS 2000 cover_warta_vol8no1.jpg Z. Poeloengan Additional Author Pusat Penelitian Kelapa Sawit (PPKS) Additional Author Subronto Primary Author Sudharto Prawirosukarto Additional Author Asmono, Dwi Primary Author JENNY Elisabeth Additional Author SUGIYONO Primary Author SUTARTA, Edy Sigit Primary Author Pamin, Kabul Primary Author GINTING, Gale Primary Author POELOENGAN, Z Primary Author Suprianto, Edy Primary Author Guritno, Purboyo Primary Author mixed material 08532141 Medan Pusat Penelitian Kelapa Sawit (PPKS) 1999 cover_warta_vol7no1.jpg Kabul Pamin Additional Author Purboyo Guritno Additional Author Eka Nuryanto Additional Author Subronto Additional Author PPKS Additional Author Tjahjono Herawan Additional Author R. Sukarji Additional Author Edy Sigit Sutarta Additional Author FADZRI PURNOMO Additional Author DIWAN Prima Ariana Additional Author JENNY Elisabeth Additional Author Angga Jatmika Additional Author SUGIYONO Additional Author Sjafrul Latief Additional Author Krismawati Sinaga Additional Author mixed material 0853196X Medan Pusat Penelitian Kelapa Sawit (PPKS) 1999 cvr_7_N1_1999.JPG JENNY Elisabeth Additional Author mixed material Medan PPKS 1998 JENNY Elisabeth Additional Author mixed material