Gaya APA

Kurniawan, I., Simadibrata, M. (2011). The role of probiotics to improve gut health in the elderly . Jakarta: faculty of medicine, universitas indonesia.

Gaya MLA

Kurniawan, Indra., Simadibrata, Marcellus. "The role of probiotics to improve gut health in the elderly". Jakarta: faculty of medicine, universitas indonesia, 2011. Text.