Gaya APA

Sofiana, L. et al (2011). Fingernail biting increase the risk of soil transmitted helminth (STH) infection in elementary school children . Jakarta: Sekretariat Badan Litbangkes.

Gaya MLA

Sofiana, Liena. et al. "Fingernail biting increase the risk of soil transmitted helminth (STH) infection in elementary school children". Jakarta: Sekretariat Badan Litbangkes, 2011. Text.