. (2004). . (e124028). Strategy, 12(2), e124028
. "" .e124028 , Strategy, 12, 2, 2004, e124028.
. (2004). '', Strategy, 12(2), e124028.
, "," Strategy, 12 2 (2004): e124028,
. . Strategy. 2004;12(2):e124028 (In Persian).
