edited by Donald A. Jardine
North-Holland Publishing Company, 1974
Buku Referensi
Lyon, John K.
John Wiley & Sons, 1971
Buku Teks
Tsichritzis, Dionysios C.
Academic Press, 1977
Buku Teks
Cardenas, Alfonso F.
Allyn and Bacon, 1979
Buku Teks
Curtice, Robert M.
Van Nostrand Reinhold, 1982
Buku Teks