Artikel Jurnal
Meier, Remy, author
The Indonesian Journal of Gastroenterology Hepatology and Digestive Endoscopy, 2003
Artikel Jurnal
Blackman, Sheldon, author
John Wiley & Sons, 1971
Buku Teks
Christensen, Mads G., author
Springer Nature, 2019
eBooks
Lembaga Penelitian Universitas Indonesia, 2007
Artikel Jurnal