. (3GReI HfGA GdhWf GdJaGYd(B. (3GdYQHj(B. (3dHfGfs - . (3GdQjS, QjGVs; Ryad Rayes ((3HjQhJs (3eLehYI GdJNWjW hGdGfeGAs, 1975)
* (3eQGLY aj BNQ GdcJGHs
Keywords: (3dHfGfs -- (3JGQjNs; (3dHfGfs -- (3GdGMhGd GdGLJeGYjI(B-(3JGQjNs