Kemitraan dalam pola Perusahaan Inti Rakyat perkebunan kelapa sawit : studi di Desa Kerta dan Desa Kertaraharja Kabupaten Lebak Propinsi Banten = Partnership within nucleus estate smallholder palm oil plantations : study in Village of Kerta and Kertaraharja Regency of Lebak the Province of Banten - Ermanto Fahamsyah, author (2013)