Rodek Berkes, N., Z. Birkner, i T. Máhr. „Corporate Social Responsibility in the Water Industry Sector“. ENTRENOVA - ENTerprise REsearch InNOVAtion, sv. 3, izd. 1, listopad 2017., str. 249-54, https://hrcak.srce.hr/ojs/index.php/entrenova/article/view/14084.