20 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 Z. Poeloengan Additional Author Adlin U. Lubis Additional Author Pusat Penelitian Kelapa Sawit (PPKS) Additional Author Gale Ginting Additional Author Fatmawati Additional Author Amir Purba Additional Author ADIWIGANDA, Rachmat Additional Author Angga Jatmika Additional Author P.L. Tobing Additional Author Subronto, Additional Author mixed material 08532141 Medan Pusat Penelitian Kelapa Sawit (PPKS) 1996 cover_warta_vol4no1.jpg Kabul Pamin Additional Author Z. Poeloengan Additional Author Adlin U. Lubis Additional Author A. Purba Additional Author PUSAT PENELITIAN KELAPA SAWIT Additional Author A. Sipayung Additional Author P. Purba Additional Author Rolettha Y. Purba Additional Author P. Girsang Additional Author E. Manalu Additional Author Arief Priyambodo Additional Author Nugroho Kusnohadi Additional Author Rohayati Suprihartini Additional Author mixed material 08532141 Medan Pusat Penelitian Kelapa Sawit (PPKS) 1995 Cover_Warta_PPKS_Vol_3_No_3.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 P.Purba ,A.U.Lubis Primary Author mixed material Marihat Ulu, Pematang Siantar 1985 PT.PERKEBUNAN_VI-VII.JPG.JPG PUSAT PENELITIAN KELAPA SAWIT Primary Author SUSANTO, Agus Primary Author Lubis, Azhar Fadillah Primary Author Purba, A. Razak Primary Author Suprianto, Edy Primary Author Samosir, Yohannes Primary Author mixed material Medan INDNESA OIL PALM RESEARCH INSITUTE 2010 proceeding.jpg.jpg Eka Nuryanto Additional Author PUSAT PENELITIAN KELAPA SAWIT Additional Author Agus Eko Prasetyo Additional Author Eko Noviandi Ginting Additional Author A. Razak Purba Additional Author Hari Priwiratama Additional Author Sujadi Additional Author Arsyad D. Koedadiri Additional Author Muhammad Akmal Agustira Additional Author HARAHAP, Iman Yani Additional Author Sjafrul Latief Additional Author Fizrul Indra Lubis Additional Author mixed material 08532141 Medan Pusat Penelitian Kelapa Sawit (PPKS) 2016 Cvr_Warta_ppks_V21_N3_Okt_16.JPG Pestisida di Perkebunan Kelapa Sawit PUSAT PENELITIAN KELAPA SAWIT Additional Author Rolettha Y. Purba Primary Author Agus Susanto Primary Author Agus Eko Prasetyo Primary Author Azhar Fadillah Lubis Primary Author Ahmad P. Dongoran Primary Author mixed material 9789798529795 Medan PPKS 2008 12846.jpg.jpg Adlin U. Lubis Additional Author P. Purba Additional Author Fidber Chan Additional Author Sri Wahyuni Additional Author Suheimi Syukur Additional Author mixed material 02161427 Pematang Siantar Pusat Penelitian Marihat 1986 COVER_VOL.6_NO.1_APRIL_1986.jpg Pusat Penelitian Kelapa Sawit (PPKS) Additional Author HARAHAP, Iman Yani Additional Author Sujadi, Bayu Adhi Nugroho, A. Razak Purba Additional Author Eka Nuryanto dan Muhammad Ikhsan Dalil Additional Author Hasrul Abdi Hasibuan, Meta Rivani dan Alida Lubis Additional Author Donnarina Simanjuntak, Fahrida Yanti, A.E. Prasetyo dan Agus Susanto Additional Author Mohamad Arif dan Darwin Sihombing Additional Author mixed material 08532141 Medan Pusat Penelitian Kelapa Sawit (PPKS) 2013 Cover_Warta_Vol._18_No._3.jpg