6 1 20 Materi pokok riset operasional I N. Soemartojo Primary Author mixed material Jakarta Jakarta: Karunika 1989 Operations research Siswanto Primary Author mixed material 9797818357 Jakarta Erlangga. 2007 Prinsip-prinsip riset operasi Aminudin Additional Author mixed material 9797810348 Jakarta: Erlangga Jakarta: Erlangga 2005 Riset operasional I : materi pokok N. SUMARTOYO Additional Author mixed material Jakarta Jakarta: Karunika 1989 Riset operasional I : materi pokok N. SUMARTOYO Additional Author mixed material Jakarta Jakarta: Karunika 1989 Prinsip-prinsip riset operasi Aminudin Additional Author mixed material 9797810348 Jakarta: Erlangga Jakarta: Erlangga 2005