edited by Robert F. Baker, L.G. Byrd and D. Grant Mickle
Van Nostrand Reinhold, 1975
Buku Referensi
Wright, Paul H.
John Wiley & Sons, 2004
Buku Teks
Oglesby, Clarkson H. (Clarkson Hill), 1908-
John Wiley & Sons, 1963
Buku Teks
Singh, Gurcharn
Standard Publishers Distributors, 1978
Buku Teks
Wright, Paul H.
John Wiley & Sons, 1979
Buku Teks