Article Gao, Ce; Wang, Jian; Yang, Xiaoming (2014)
Cao Huanwen and His Research on the Gunpowder of China. Ziran Kexueshi Yanjiu (Studies in the History of Natural Sciences) (pp. 467-478). (/isis/citation/CBB666890349/) unapi

Article Wang, Lingling (2004)
Mining and Smelting Technologies for Gold and Silver in Song Dynasty. Ziran Kexueshi Yanjiu (Studies in the History of Natural Sciences) (p. 356). (/isis/citation/CBB000502100/) unapi

Book Needham, Joseph; Wang, Ling; Price, Derek J. de Solla (1986)
Heavenly clockwork: The great astronomical clocks of medieval China. Second edition, with supplement by Combridge, John H.. (/isis/citation/CBB000062445/) unapi