text Bogor Institut Pertanian Bogor 1987 116 p. ill ; 29 cm PERIKANAN BAGAN TANCAP KOTAMADYA SIBOLGA SIBOLGA SUMATERA UTARA 639 639 INLIS000000000001862 Converted from MARCXML to MODS version 3.5 using MARC21slim2MODS3-5.xsl (Revision 1.106 2014/12/19)