Mabud, F. N., S. Noor, and S. Chowdhury. “Oral Nifedipine Versus Intravenous Labetalol in the Management of Severe Pregnancy Induced Hypertension: A Randomized Control Trial”. Chattagram Maa-O-Shishu Hospital Medical College Journal, vol. 20, no. 1, May 2021, pp. 55-61, doi:10.3329/cmoshmcj.v20i1.53589.