Nurdianto, Arif Rahman. “Zero Maternal Death With KECUBUNG Featured in SATE Krembung Application (Integrated Queue System) in Krembung Community Health Center in 2017 until 2018”. Qanun Medika - Medical Journal Faculty of Medicine Muhammadiyah Surabaya, vol. 4, no. 1, Jan. 2020, pp. 59-67, doi:10.30651/jqm.v4i1.2746.