6 1 50 MANGOENSOEKARJO, SOEPADIYO Primary Author RISZA, SUYATNO Primary Author Biro Data Indonesia Primary Author mixed material 9794205230 2008 Manajemen_agrobisnis_kelapa_sawit.jpg.jpg RISZA, SUYATNO Primary Author LUBIS, ADLIN U. Editor HANAFIAH, KEMAS ALI Editor mixed material 9789792125498 YOGYAKARTA Kanisius 2010 masa_depan.jpg.jpg RISZA, SUYATNO Primary Author mixed material 9789792125498 YOGYAKARTA PENERBIT KANISIUS 2010 Buku_Pertanian_MASA_DEPAN_PERKEBUNAN_KELAPA_SAWIT_INDONESIA_.jpg.jpg.jpg RISZA, SUYATNO Primary Author mixed material 9794970824 YOGYAKARTA PENERBIT KANISIUS 1994 KELAPA_SAWIT_UPAYA_PENINGKATAN_PRODUKTIVITAS.jpg.jpg.jpg RISZA, SUYATNO Primary Author mixed material 9789794970829 YOGYAKARTA PENERBIT KANISIUS 1994 S2.jpg.jpg RISZA, SUYATNO Primary Author mixed material 9794970824 YOGYAKARTA Kanisius 1994