Confucius & Confucianism: the essentials, Lee Dian Rainey, John Wiley and Sons, 2010, ISBN 978-1-4051-8841-8, ... It was during the Han dynasty, about a hundred years or more after the thinkers of the Warring States era, that scholars looked back and began to categorize the thinkers and the texts of the Warring States into schools of thought ...
Chinese commercial law, Kui Hua Wang, Oxford University Press, 2000, ISBN 978-0-19-550858-1, ... the Spring-Autumn Period was characterised by the 'Contention of a Hundred Schools of Thought' (Bai Jia Zheng Ming) ... Confucianism, Moism, Daoism and Legalism ...