Pfeiffer, John, author
Time Incorporated, 1964
Buku Referensi
Pollard, Thomas D. (Thomas Dean), 1942-, author
Saunders Elsevier, 2008
Buku Teks
De Robertis, Eduardo D. P., 1913-, author
Saunders, 1968
Buku Teks
Pollard, Thomas D. (Thomas Dean), 1942-, author
Saunders Elsevier, 2008
Buku Teks
Karp, Gerald, author
John Wiley & Sons Inc, 2010
Buku Teks