9 1 10 Pusat Penelitian Kelapa Sawit (PPKS) Primary Author Sujadi Primary Author Supena, Nanang Primary Author RAHUTOMO, Suroso Primary Author Suprianto, Edy Primary Author Yenni, Yurna Primary Author Nazri, Erwin Primary Author Setiowati, Retno Diah Primary Author Wening, Sri Primary Author Siregar, Heri Adriwan Primary Author mixed material 14103362 Medan Pusat Penelitian Kelapa Sawit 2018 2200146.jpeg.jpeg ERWIN Additional Author mixed material Medan PTPN II 2000 Cvr_Sejarah_tembakau_Deli.JPG ERWIN Additional Author mixed material 9799619807 Medan BPTD 2000 Cvr_Hama_dan_penyakit.JPG PUSAT PENELITIAN KELAPA SAWIT Additional Author Eko Noviandi Ginting Additional Author Yurna Yenni Additional Author Ernayunita Additional Author Erwinsyah Additional Author Muhammad Akmal Agustira Additional Author HARAHAP, Iman Yani Additional Author Mohamad Arif Additional Author Wendi Erwin Nasution Additional Author mixed material 08532141 Medan Pusat Penelitian Kelapa Sawit (PPKS) 2016 Cvr_Warta_PPKS_v21n2_Juni_16.JPG ERWIN Primary Author mixed material Medan Panitia lustrm VII fakultas pertanian usu 1991 10799.jpg.jpg Hirsch, Erwin Additional Author mixed material BAUR, Erwin Additional Author mixed material Bauer, Erwin Additional Author mixed material Smith, Erwin F. Additional Author mixed material Produced from Hohns Hopkins Hospital Bulletin 1917