Mysteries of Dao De Jing (Tao Te Ching) Revealed Guo Yong Jin E-Book (epub)

Structural Vibration Guoyong Jin, Tiangui Ye, Zhu Su E-Book (pdf)

A Study of Ion Cluster Theory of Molten Silicates and some Inorganic Substances Guo Chang Jiang, Yong Quan Wu, Jing Lin You E-Book (pdf)