Marshall, Alan G.
John Wiley & Sons, 1976
Buku Teks
Ackerman, Eugene
Airlangga University Press , 1988
Buku Teks
Martin, R. Bruce
McGraw-Hill, 1964
Buku Teks
West, Edward Staunton
Macmillan, 1963
Buku Teks
Marshall, Alan G.
John Wiley & Sons, 1978
Buku Teks