Khatun, M., M. M. A. Sayed, M. S. Alam, F. Yeasmin, and L. Khondker. “Level of Serum Calcium in Psoriatic Patients”. Community Based Medical Journal, vol. 5, no. 2, Aug. 2016, pp. 29-32, doi:10.3329/cbmj.v5i2.53928.