ELSEVIER,
Majalah, Jurnal, Buletin
Seiroka, Noma
Kodansha International, 1970
Buku Referensi
Editor by Carl N. Haywood
Wisconsin Academy of Sciences, Arts, and Letter , 1975
Buku Teks
edited by Dagobert D. Runes and Harry G. Schrickel
Philosophical Library, 1946
Buku Referensi
Meridiana, 1967
Buku Teks