???????? ???? ?? ???????? ???? (?? ??????? : Fault block )? ?? ???????? ????? ????? ?? ??? ???? ??????? ?? ?? ?????? ?????? ?????????? ? ???? ?? ?????? ???? ?? ???? ????????. ????? ???? ??? ?? ???? ??????? ????? ???????. ???????? ???? ??? ???? ???? ?????? ?? ????????? ???? ????? ??????? ?? ??? ??????? ?? ????????? ?????? ????????? ??? ?? ?????? ?????? ???????. ????????? ???? ?? ????? ???????? ?? ???? ???????? ????????.

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• Wikipedia contributors, "Fault block," Wikipedia, The Free Encyclopedia, http://en.wikipedia.org/w/index.php?title=Fault_block&oldid=497161625 (accessed June 14, 2012).