1. 1. Anderson LL, editor. Pigs. 3rd ed: Lea and Fabiger; 1974.
2. 2. Mpofu I, Makuza SMM, editors. Pig Production Science and Technology. UK: Upfront Publishing; 2003.
3. 3. Bangladesh Bureau of Statistics. Report of the household-based livestock and poultry survey 2009. In: Division S, editor: Ministry of Planning, Government of the People's Republic of Bangladesh; 2010.
4. 4. Heitzman J, Worden R. Bangladesh a country study. Washington: GPO for the Library of Congress. 1989.
5. 5. World Population Review. Bangladesh Population 2019 http://worldpopulationreview.com/countries/bangladesh-population/.