What challenges did China encounter between the two world wars, and what solutions did the Nationalists and the Communists propose to resolve them?

Times new roman, apa, double spaced, 350-500 words, please include citations and references at the bottom of the page.
I do not have the book but is it:
Contemporary World History
William J. Duiker, 2021
Cengage
ISBN.13: 978-0-357-36486-4