Harrisson, Tom
Cornell University, 1969
Buku Teks
Harrisson, Tom
Cornell University, 1969
Buku Teks
Seimer, Stanley J.
Syracuse University Press , 1959
Buku Teks
Robertson, Sir Denni
Cambridge University , 1960
Buku Teks
Franken, H.J.
American Elsevier Pub. Co., 1975
Buku Teks