Kassim, N. K., Jelani, A. M., T Ismail, T. S., Omar, J., Ibrahim, H. A., W Azman, W. N., Shafii, N. and Yaacob, N. M. (2019) “Pre-operative serum total bilirubin level as an indicator marker of perforated appendicitis”., Bangladesh Journal of Medical Science, 18(2), pp. 233–237. doi: 10.3329/bjms.v18i2.40691.