U ko ko
SEARO, 1991
Buku Teks
Ignatius Yudi Setiawan, author
Fakultas Kesehatan Masyarakat Universitas Indonesia, 2020
UI - Skripsi (Membership)
Joni Iswanto, author
Fakultas Kesehatan Masyarakat Universitas Indonesia, 2013
UI - Tesis (Membership)
edited by Francis P. Boscoe
CABI, 2013
Buku Teks
El-Sayed, Abdulrahman M., author
Oxford University Press, 2017
eBooks