Laporan proyek studi kemungkinan pengembangan usaha tanaman pangan di Pasir Pengarayan (Riau) TEAM STUDI REGIONAL PROPINSI RIAU text Pekanbaru Universitas Riau 1974 ind xvii, 80 p. ; 27 cm. Bibl.: p. 81 Team Studi Regional Propinsi Riau FOOD CROPS RIAU 633.1(921.26) 633.1(921.26) TEA l 250717 20250717023551 INLIS000000000009002 Converted from MARCXML to MODS version 3.5 using MARC21slim2MODS3-5.xsl (Revision 1.106 2014/12/19)