Якименко, Андрей Николаевич, and Андрей Иванович Костромицкий. “Features Optimizing a Site for Social Networking and Seo in Them”. Eastern-European Journal of Enterprise Technologies 5, no. 2(53) (November 24, 2011): 28–31. Accessed July 4, 2024. https://journals.uran.ua/eejet/article/view/1173.