Lensen, George Alexander, author
Sophia University, 1970
Buku Teks
Batam Industrial Development Authority
Batam Industrial Development Authority, 2009
Buku Referensi
Meleis, Afaf Ibrahim, author
Lippincott, 2007
Buku Teks
Meleis, Afaf Ibrahim, author
Lippincott , 1985
Buku Teks
Bickel, Alexander M.
Harper Torchbooks, 1970
Buku Teks