1. Urbanization in Malaysia. Statisticahttps://www.statista.com/statistics/455880/urbanization-in-malaysia/#:~:text=Malaysia%20is%20currently%20one%20of,to%2074%20percent%20in%202014
2. Population Distribution and Basic Demographic Characteristic Report 2010,2010
3. Pembangunan Tanpa Sempadan di Malaysia: Persoalan Kelestarian dan Transformasi Kawasan, Siri Syarahan Umum Pelantikan Profesor;Samat,2019
4. Second National Urbanisation Policy (NuP2),2016
5. Total Population of the ASEAN Countries from 2008 to 2018https://www.statista.com/statistics/796222/total-population-of-the-asean-countries/