Whiteman, P. C.
Oxford University Press, 1980
Buku Teks
Fitzgerald, Angela
Sense, 2012
eBooks
Ateneo de Manila University Loyola Schools, 2006, {s.a}
Majalah, Jurnal, Buletin
Benge, Sophie
Periplus Editions (HK) Ltd., 1999
Buku Referensi
Official publicaation of the SEAMEO regional tropical medicine and public health network (TROPMED) ,
Majalah, Jurnal, Buletin