Cheong, Kwee Thiam, author
LexisNexis, 2016
Buku Teks
Flint, Colin, author
Routledge, Taylor & Francis Group, 2017
Buku Teks
Collins, Sheila, author
MacMilan, 1983
Buku Teks
Kozier, Barbara, author
Addison-Wesley , 1989
Buku Teks
Soltau, Roger H.
Longmans, Green , 1951
Buku Teks