Scholars, Dutch, author
Uitgeversmaatschappij A., 1959
Buku Teks
Gonda, Jan, 1905-1991, author
Brill, 1975
Buku Teks SO
Korea Foundation, [date of publication not identified]
Buku Referensi
Schrieke, Bertram Johannes Otto, author
W. Van Hoeve, 1955
Buku Teks
Chan, F. Hilbert, author
Asian Research service, 1982
Buku Teks SO