F. Fatimah, N. Susilaningsih, H. Sukmaningtyas, and A. Subagio, “Effectiveness of Boiling Method Using Aquadest Solvent in Oolong Tea Extraction Producing Mangenese Particle as a Contrast Media on Magnetic Resonance Cholangiopancreatography (MRCP)”, Med.Lab.Tech.J., vol. 7, no. 2, pp. 164–173, Dec. 2021.