Coba jelasin Lihat pula dari Ensiklopedia Yongle dong

Ebrey, Patricia Buckley, Anne Walthall, James B. Palais. (2006). East Asia: A Cultural, Social, and Political History. Boston: Houghton Mifflin Company. ISBN 0-618-13384-4.

Guo Bogong 郭佰恭. Yongle dadian kao 永樂大典考. Shanghai, Commercial Press, 1937.