APA (7th ed.) Citation

(2009). Sigma jurnal sains dan teknologi 2009. LPPM-USD.

Chicago Style (17th ed.) Citation

Sigma Jurnal Sains Dan Teknologi 2009. LPPM-USD, 2009.

MLA (8th ed.) Citation

Sigma Jurnal Sains Dan Teknologi 2009. LPPM-USD, 2009.

Warning: These citations may not always be 100% accurate.