DHARMASETIAWANI, N.; SURYADI, H.; FIRMANSYAH, A. Quantitative analysis of lactose and lactulose in urine by high performance liquid chromatography for determination of intestinal lactase activity. Medical Journal of Indonesia, [S. l.], v. 12, n. 1, p. 8–12, 2003. DOI: 10.13181/mji.v12i1.84. Disponível em: https://mji.ui.ac.id/journal/index.php/mji/article/view/84. Acesso em: 21 jan. 2025.