$1!3'!R9'2F !O@!DW'2Fs - $1'E*'c+s ($1'\s!<5 (B:s $1!04!<5!5.!PN!3K!JH!Na(B,s, 2015)
Keywords: Gongyang, Gao, Warring States, 403-221 B.C.; Guliang, Chi, Warring States, 403-221 B.C.