text Pekanbaru Lembaga Penelitian Universitas Riau 2000 Ind vii, 38 p. : ill. ; 29 cm. vii, 38 p. : ill. ; 29 cm. Bibl.: p. 33-34.-- Perp. memiliki 2 eks. SYAIFUDDIN GILLNETS TECHNOLOGY RIAU 639.2.081.11 639.2.081.11SYAa INLIS000000000012862 Converted from MARCXML to MODS version 3.5 using MARC21slim2MODS3-5.xsl (Revision 1.106 2014/12/19)