K. Nesa, M. J. Iqbal, K. S. Halim, and I. Jahan, “Evaluation of the Effect of Mefenamic Acid Alone and Combination with Fennel (Foenicullum Vulgare) on Primary Dysmenorrhoea”, Bangladesh Med J, vol. 48, no. 2, pp. 38–43, May 2019.