3 1 10 POELOENGAN, Z Primary Author Hutomo, Tri Primary Author Djamin, A Primary Author Guritno, P Primary Author mixed material 9798529111 Medan Indonesian Oil Palm Research Institute (IOPRI) 1996 2200229_42_11zon.jpeg.jpeg A. Djamin Additional Author A. Sipayung Additional Author Fidber Chan Additional Author Kusnu Martoyo Additional Author Suwandi Additional Author Tejoyuwono Notohadiprawiro Additional Author Asep T. Toyib Additional Author R. Desmierde de Chenon Additional Author mixed material 02161427 Pematang Siantar Pusat Penelitian Marihat 1986 COVER_VOL.6_NO.2-3_DESEMBER_1986.jpg Proceedings of the 1996 ISOPA/IOPRI seminar on Agronomic up date in oil palm management, 16-17 Januari 1996, Pekanbaru. DJAMIN, A et al Additional Author mixed material Medan IOPRI 1996