Alrowais, Raid, et al. “Effect of Alkaline Pretreatment on the Characteristics of Barley Straw and Modeling of Methane Production via Codigestion of Pretreated Straw With Sewage Sludge”. BioResources, vol. 19, no. 2, Feb. 2024, pp. 2179-00, https://ojs.bioresources.com/index.php/BRJ/article/view/23216.