Murray, Michael
Atria Books, 2005
Buku Referensi
The Indonesian Journal of Gastroenterology Hepatology and Digestive Endoscopy Vol. 4 (1) April 2003 : 11-13, 2003
Artikel Jurnal
White, Ellen G.
Bandung Indonesia Publishing House 1992,
Buku Teks
Siregar, Rohanta
Universitas Indonesia, 2004
UI - Tesis Membership
Agnes Gabe
Fakultas Kesehatan Masyarakat Universitas Indonesia, 2022
UI - Skripsi Membership