APA Style

Kurniawan, I., Simadibrata, M. (2011). The role of probiotics to improve gut health in the elderly . Jakarta: Fakutas Kesehatan Masyarakat Universita Indonesia.

MLA Style

Kurniawan, Indra., Simadibrata, Marcellus. "The role of probiotics to improve gut health in the elderly". Jakarta: Fakutas Kesehatan Masyarakat Universita Indonesia, 2011. Text.