APA (7 ম সংস্করণ) উদ্ধৃতি

Statistics, D. o. D. a. S. (2019). Population and Environment. Obafemi Awolowo University.

শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতি

Statistics, Department of Demography and Social. Population and Environment. Obafemi Awolowo University, 2019.

M.L.A (9 ম সংস্করণ) উদ্ধৃতি

Statistics, Department of Demography and Social. Population and Environment. Obafemi Awolowo University, 2019.