Takahashi, M., author
Taiseido Shobo, 1953
Buku Referensi
Nykl, AR
Cambridge [T.p.] 1947
Buku Teks
Reeve, James M., 1953-, author
Penerbit Salemba Empat, 2014
Buku Teks
edited by Lesley Brown
Clarendon Press, 1993
Buku Referensi
The Clarendon Press, 1933
Buku Referensi