T. Adu, D., J. K.M. Kuwornu, H. Anim-Somuah, and N. Sasaki. “Application of livelihood vulnerability index in assessing smallholder maize farming households’ vulnerability to climate change in Brong-Ahafo region of Ghana”. Kasetsart Journal of Social Sciences, vol. 39, no. 1, July 2017, pp. 22-32, https://so04.tci-thaijo.org/index.php/kjss/article/view/242381.