(2009). Sigma jurnal sains dan teknologi 2009. LPPM-USD.
Chicago Style (17th ed.) CitationSigma Jurnal Sains Dan Teknologi 2009. LPPM-USD, 2009.
MLA (8th ed.) CitationSigma Jurnal Sains Dan Teknologi 2009. LPPM-USD, 2009.
Warning: These citations may not always be 100% accurate.