1. Agriculture Learning. 2018. How to Prepare Vermi and Compost Ground and How to Apply Those in the Crops. http://www.agriculturelearning.com/.
2. Agricultural Services Innovation and Reform Project (ASIRP). 2003. Agricultural Extension in Bangladesh: An Entitlement of All Farmers? The Results of National Extension Coverage Survey. http://www.lcgbangladesh.org/Agriculture/reports/The%20Results% 20of%20a%20National%20Extension%20Coverage%20Survey.pdf
3. AIS. 2015. Seed Bed for Boro Rice Cultivation. Planning and Implementation, Cabinet Division, a2i. http://www.ais.gov.bd/site/page/960f2b68-7f9e-4558-88b5-a191a1d75b99
4. Agricultural Extension: Good Intentions and Hard Realities
5. Chapter 44 Agricultural Extension