text Pekanbaru BIP. Riau 1994 Ind i, 54 p.: ill.; 28 cm. i, 54 p.: ill.; 28 cm. BALAI INFORMASI PERTANIAN RIAU WETLAND DRY FARMING SUMATRA 921 (262) 921 (262)BALl INLIS000000000010638 Converted from MARCXML to MODS version 3.5 using MARC21slim2MODS3-5.xsl (Revision 1.106 2014/12/19)