
Zdroj: [Alexis, Jonas E, In the Name of Education, https://books.google.cz/books?id=KO0mClbGpHcC&printsec=frontcover&hl=cs&source=gbs_ge_summary_r&cad=0#v=onepage&q&f=false, Xulon Press, United States of America, 2007, 411, 184, 1600347606, angličtina] Source: [Pollock, John, Wilberforce, https://books.google.cz/books?id=4MdlAgAAQBAJ&printsec=frontcover&hl=cs&source=gbs_ge_summary_r&cad=0#v=onepage&q&f=false, David C. Cook, 2013, 384, 0781411092, angličtina]