(3Gdeaghe GdMOjK ddecGf hGdReGfs - (3H(B. (3S(B. (3OjajRs; (3GdSjO YWGs ((3eUQs (3GdgjFI GdeUQjI GdYGeI ddcJGHs, 1998)
Keywords: Natural Sciences (3GdYdhe GdHMJIs; General