Annual Vital Statistics Report - 2018(PDF). Thiruvananthapuram: Department of Economics and Statistics, Government of Kerala. 2020. p. 55. Archived from the original(PDF) on 2021-11-02. Retrieved 2022-12-17.
Annual Vital Statistics Report - 2018(PDF). Thiruvananthapuram: Department of Economics and Statistics, Government of Kerala. 2020. p. 55. Archived from the original(PDF) on 2021-11-02. Retrieved 2022-12-17.