Nikolskaya, T.K. (ed.) (2018) Evangel'skie khristiane-baptisty: regional'naia istoria (Tul'skaia oblast‘, respublika Chuvashiia) [Evangelical Christians/ Baptists: A Regional History (Tula region, Chuvash Republic)]. SPb: Sankt-Peterburgskii khristianskii universitet. - 268 p