ManikHenry M. “QUANTIFICATION OF TUNA FISH TARGET STRENGTH USING QUANTITATIVE ECHO SOUNDER”. Jurnal Ilmu dan Teknologi Kelautan Tropis 1, no. 1 (July 1, 2009). Accessed May 3, 2024. https://journal.ipb.ac.id/index.php/jurnalikt/article/view/7936.