Kamireddy, Sirinivas R., Christopher Schaefer, Matt Defrese, John Degenstein, and Yun Ji. 2012. “Pretreatment and Enzymatic Hydrolysis of Sunflower Hulls for Fermentable Sugar Production”. International Journal of Agricultural and Biological Engineering 5 (1):62-70. https://www.ijabe.migration.pkpps06.publicknowledgeproject.org/index.php/ijabe/article/view/550.