$1'Pr'EJ-MO'9$s - $1!\l'3m"G;!Ags ($1!4I!0a!9%':`!3K!JH!Nas, 1988)
Keywords: $1'Xf!Ci!;E'Xi!5#!`2!7h(B--$1'Pr'EJ'9$KN7!ON'T2'XN'Y$s