1.
Ponnapalli R, Ponnapalli KM, Subbiah A. Explaining Global Patterns of Population Aging in 2012 by the Demographic Transition Model. 5007 [Internet]. 2013 Feb. 1 [cited 2024 Nov. 22];3(2):345-52. Available from: https://archive.aessweb.com/index.php/5007/article/view/2421