Linguistic Outline of Ye Fei and Xu Tongqiang.

Chen Baoya's Linguistic Methodology of China in the 20th Century.

Saussure's Course in General Linguistics

Xu Tongqiang's Linguistic Theory, Historical Linguistics and Basic Linguistics.

Guo Xiliang's Ancient Chinese

Tang Zuofan's phonological course

Wang Li's A General History of China and Chinese Phonology

Modern Chinese Department of Chinese Department of Peking University.

Zhu grammar lecture, grammar question and answer, modern Chinese grammar research.

A phonetics course by Lin Dao and Wang Lijia.

Wang Lijia's phonological foundation