1. H.H. Yang: Aromatic High-Strength Fibers (John Wiley & Sons, New York 1989).
2. H.H. Yang: Kevlar Aramid Fiber (John Wiley & Sons, New York 1993).
3. Jinbao Li, Meiyun Zhang, Yangyu Wu: Study on Aramid Fiber Paper Material of High Performance (Shaanxi University of Science & Technology, Xi'an 2005). (In Chinese).