edited by Trevor Ling
ISEAS, 1993
Buku Teks SO
Chihara, Daigoro
E.J. Brill, 1996
Buku Referensi
Buss, Claude Albert
D. Van Nostrand Company, 1958
Buku Teks SO
Dobby, Ernest Henry George, 1906-1981
University of London Press, 1950
Buku Teks
Dobby, Ernest Henry George, 1906-1981
University of London Press, 1953
Buku Teks SO