Huizhou Mulian operas, 1994 p. 1, 2nd group (Zheng Zhizhen (1518-1595); Confucian Scholar from Huizhou) p. 407 (Cheng Chih-chen [in Chi.])
Chung-kuo wen hsüeh ta tz‘u tien, 1991 (Cheng Chih-chen, Ming dramatist, t. Tzu-yü, h. Kao-shih-shan-jen, native of Ch‘i-men; active during the reigns of Chia-ching and Wan-li)