. (3MGTjI Ydi GdGSJTQGb GdeYGUQs (3JMbjb aj GdMGd(B: (3gd JbY aj GdYQHjI fajGs - . (3GdehSi, fgGOs ((3HjQhJs (3GdeDSSI GdYQHjI ddOQGSGJ hGdfTQs, 1980)
(3eQGLY aj BNQ GdcJGHs
Keywords: (3GddZI GdYQHjIs -- (3GdfMhs