Fei Zhengqing: A History of People's Republic of China (PRC) in Cambridge, Shanghai People's Publishing House, 1992.
Mao Zedong: Selected Works of Mao Zedong (Vol. 1-5), People's Publishing House, 1977.
Sun Yat-sen: General Plan for the Founding of the People's Republic of China, Complete Works of Sun Yat-sen, Volume 6, Zhonghua Book Company, 1985.
Zhang Xianwen: History of the Republic of China (4 volumes), Nanjing University Press, 2006.
Coming to a new summer: the history of Beiyang warlords (up and down), Nankai University Press, 2000.
Note: Fei Zhengqing is the most objective and true historical series in Cambridge. If you want to study the history of the Party, look at the selected works of Chairman Mao and Mao Zedong. You should read a special red book about the history of the Party. Tell me what you know.