na INLIS000000000006938 20240508104554 0010-0524000022 ta 240508 0 eng - 303 303 OPE Operations Reserch Method for Agricultural Dicesions - USA : The Lowa States University Press, 1972 300p. : ilus ; 20,5 cm Research Methods Fotocopy Perpustakaan BPSIP Jatim 110/BPSIPJATIM/2024