R. Aini and J. Susiloningsih, “Risk Factor Associated with Hepatitis B Incidence in Pondok Pesantren Putri Ibnul Qoyyim Yogyakarta”, Sains Med J Ked Kes, vol. 5, no. 1, pp. 30–33, Jun. 2013, doi: 10.30659/sainsmed.v5i1.362.