C. S. Hammond and Company
C.S. Hammond & Co., [date of publication not identified]
Buku Teks
C.S. Hammond & Co. , 1960
Buku Referensi
Garden City Books, [date of publication not identified]
Buku Referensi
Wiegand, Patrick
Oxford University Press, 1994
Buku Teks
Chalid Latif
Pembina Peraga, 1992
Buku Referensi