na NADAR-06090000001874 20090604092457.0 170309||||||||| | ||| |||| ||ind|| 9794979155 0010-060900000001874 633.4 633.4 RUK u Rukmana, Rahmat Ubi jalar budi daya dan pascapanen Rahmat Rukmana Yogyakarta Kanisius 1997 , 66 hlm il 20 cm Ubi Jalar acpdban