Ubi jalar budidaya dan pasca panen text Yogyakarta Kanisius 1997 Cet.1 ind 66 hlm ilus 21 cm H. Rahmat Rukmana Biblbiografi : hlm. 61-62 Ubi jalar 633.492 979-497-915-5 20090227024913.0 YOGYA-02090000034576 Converted from MARCXML to MODS version 3.5 using MARC21slim2MODS3-5.xsl (Revision 1.106 2014/12/19)