1. Acta Synodalia Sacrosancti Concilii Oecumenici Vaticani II: Periodus Secunda, Pars III,1972
2. Lehrbuch der historischen Methode und der Geschichtsphilosophie;Bernheim,1889
3. Discours sur l’Histoire Universelle;Bossuet,1681
4. Transcendence and Non-Naturalism in Early Chinese Thought;Brown,2021
5. What is History?;Carr,1961