Gaya APA

ABDULLAH, A, A. et al (2013). The effectiveness of endoscopic retrograde cholangiopancreatography in the management of patients . Jakarta: Interna.

Gaya MLA

ABDULLAH, Arman, A.. et al. "The effectiveness of endoscopic retrograde cholangiopancreatography in the management of patients". Jakarta: Interna, 2013. Majalah.