Niemczyk, M. “Stanisław Sagan, Viktoriya Serzhanova, Science on a Contemporary State, III expanded edition, Wydawnictwo LexisNexis, Warszawa 2013, pp. 298”. Ius et Administratio, no. 3, Sept. 2013, pp. 151-5, https://journals.ur.edu.pl/iuseta/article/view/9675.