$1!04!<e!9'!9Y!7s!_+'k_!X<s - $1!5\!1a!R7s ($1!58!4c(B:s $1!Yl!7s!G*!0d!58!IC!8<!M^!^L!R\3BD!CZ!58!IC3BD!CZ!3'!8D!Na(B,s, 2013)
Keywords: Christian life; Middle age Missions; Middle age Religious aspects Christianity