(3bUI GdScc GdMOjOjI (B/ s - (3HhhO, QjJTGQOs; (3NGcj, CMeOs; (3BjJhf, QhHQJs ((3HjQhJ (B:s (3ecJHI dHfGf,s, 1978)
Keywords: (3GdWHs; (3fGTGhf UZGQ (B(10-14) (3Sfgs