"1766 - 1122 B.C." . . "Jia gu kao zheng." . . "甲骨 考證" . "Jia gu." . . "甲骨" . "China" . . . . . . . "History" . "Jia gu duan dai wen ti" . . . . . . . . . . . . . . . . . . . . . "甲骨斷代問題" .