edited by Paul M. Wortman
Sage, 1981
Buku Teks
edited by Conrad Seipp. With a pref. by Cecil G. Sheps
John Hopkins University Press, 1981
Buku Teks
Waltz, Carolyn Feher
Springer, 2017
Buku Teks SO
Bowling, Ann
Open University Press, 2006
Buku Teks
World Health Organization
Regional Office for South-East Asia, 1989
Buku Teks