Carter, M.G.
Amsterdam John Benjamins B.V. 1981
Buku Teks
Radhakrishnan, S. (Sarvepalli), 1888-1975, author
George Allen and Unwin, 1948
Buku Teks
Swansburg, Russell C., author
Jones and Bartlett, 1999
Buku Teks
Swansburg, Russell C., author
Jones and Bartlett, 1999
Buku Teks
[edited by] S. Prakash Sethi, Jagdish N. Sheth
Goodyear, 1973
Buku Teks