Naga Saputra, Sandi Halim, et al. “The Most Dominant Predictability Factor of Boey Score on The Level of Mortality in Perforation Gaster Boey Score 1 and Boey Scores 2 Patients in RSUD Dr Soetomo Surabaya”. Bioscientia Medicina : Journal of Biomedicine and Translational Research, vol. 5, no. 10, June 2021, pp. 926-30, https://doi.org/10.32539/bsm.v5i10.357.