$1'7a!Py'Xi!KH!>m'T2'CI!O5s - Russell, Bertrand; $1'7a!Pys; $1!a\'\Is ($1!F'!HW!+:s $1'U<!04!O(!@,!9%':`!3K!JH!Na(B,s, 2014)
Keywords: Luo su (Russell, Bertrand 1872-1970) .