main website of the school with information in disciplines and studios across the globe
https://www.pakua.com/
Cambridge website with local information on our public classes
https://pakua-cambridge.co.uk/
About Yin Yang, The Eight Changes, The Trigrams, and SKY - MAN – EARTH
https://web.archive.org/web/20090207043036/http://pakua.com/kua.asp?content=origin
(PDF) Our student manual describing from the times when we had 9 disciplines.
https://pakua-cambridge.co.uk/pakua-student-handbook.pdf