Study on francis L. K. Hsu's comparative theory of literate civilizations 并列题名：Study on francis L. K. Hsu's comparative theory of literate civilizations Outline of psychoculturology the comparative study of literate civilizations 并列题名：Outline of psychoculturology the comparative study of literate civilizations Prolegomena to the comparative study of civilizations prolegomena to the comparative study of civilizations