Uddin, M. S. G., M. A. K. Azad, and M. Kibria. “Factors Divide Fertility Between East and West Areas of Bangladesh: Implications for Further Strengthening the Family Planning Program”. Bangladesh Journal of Scientific Research, vol. 26, no. 1-2, Aug. 2014, pp. 37-46, doi:10.3329/bjsr.v26i1-2.20229.