Brian Kennedy et Elizabeth Guo, Chinese Martial Arts Training Manuals : A Historical Survey, Blue Snake Books, , 226–229 p. (ISBN978-1-58394-194-2, lire en ligne)
Alex Kozma, Warrior Guards the Mountain : The Internal Martial Traditions of China, Japan and South East Asia, Singing Dragon, , 352 p. (ISBN978-1-84819-124-2, lire en ligne), p. 181
Bruce Kumar Frantzis, Power of Internal Martial Arts : Combat Secrets of Ba Gua, Tai Chi, and Hsing-I, North Atlantic Books, , 344 p. (ISBN978-1-55643-253-8, lire en ligne), p. 311