Zheng Qiao s Er Ya Zhu is the important production of the Ya Xue Researchful history in Nan Song Dynasty.

Zhengqiao(郑樵) main wrote three books on Linguistic Documents,including Liushulue(六书略),Qiyinlue(七音略),and Eryazhu(尔雅注).

Erya-the Synthesized Natural Study of Chinese National Culture in Pre-Qin Dynasty Period;

The Characteristic of Tongxun in Erya Shigu;

The Disease Words in ERYA;

On Interpretation of the Polyseme in Er Ya;

On Synonyms Many Groups Character of Er Ya More Meanings In a Lemma;

The Non-equality of the Synonyms in Er Ya;

Ways of Mass Noun Hermeneutic of ErYa;

CHARATERISTICS OF SYNONYMS BASES IN ERYA;

ERYA and Chinese Etymological Methodology;