Mohd Khairul Zul Hasymi Fridaus, author
Fakultas Ilmu Keperawatan Universitas Indonesia, 2020
Artikel Jurnal
edited by M.Th. Houtsma, T.W. Arnold, R. Basset and R. Hartmann
Koros Press, 2011
Buku Referensi
Barnes, Winston H. F., author
Adam & Charles Black, 1950
Buku Teks
Langer, Susanne K., author
John Hopkins Press, 1964
Buku Teks
Chase F. Robinson.
Oxford University Press, 2001
Buku Teks