4 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 PPKS Additional Author DARNOKO Additional Author Luqman Erningpraja Additional Author Heri Santoso Additional Author Condro Utomo Additional Author Heri Adriwan Siregar Additional Author Hasril Hasan Siregar Additional Author Nanang Supena Additional Author Sujadi Additional Author Bagus Giri Yudanto Additional Author Abdul Razak Purba Additional Author Yahya Sudirman Additional Author Elis Kartika Additional Author Herawan Yuli Rahmadi Additional Author Sri Wilarso Additional Author mixed material 0853196X Medan PPKS 2006 cvr_14_N3_2006.JPG Eka Nuryanto Additional Author PUSAT PENELITIAN KELAPA SAWIT Additional Author Agus Susanto Additional Author Agus Eko Prasetyo Additional Author A. Razak Purba Additional Author Heri Adriwan Siregar Additional Author Hari Priwiratama Additional Author Hartanta Additional Author Sumitro Additional Author Wilner Manik Additional Author Andreas Panjaitan Additional Author Rajanaidu Nookiah Additional Author Ang Boon Beng Additional Author Mohammad Kohar Additional Author Indra Syahputra Additional Author Heryadi Syafii Additional Author Dwi Ratih Askasari Additional Author Safrizal Additional Author mixed material 08532141 Medan Pusat Penelitian Kelapa Sawit (PPKS) 2017 Cvr_Warta_PPKS_V22N2_Jun_2017.JPG Kelalaian Teknis di Pembibitan Kelapa Sawit Pusat Penelitian Kelapa Sawit (PPKS) Additional Author Yurna Yenni Additional Author A. Razak Purba Additional Author Heri Adriwan Siregar Additional Author Sujadi Additional Author Hernawan Y. Rahmadi Additional Author Mohammad Arif Additional Author mixed material 9786027539310 Medan Pusat Penelitian Kelapa Sawit (PPKS) 2016 Cvr_KS_Pop_19.JPG