1. Abbott, J.C. (1986), “Marketing improvement in the developing world: what happens and what we have learned”, Food & Agriculture Organization of the United Nation, available at: https://howlingpixel.com/i-en/Agricultural_marketing
2. Shari’ah economic and accounting framework of bay ‘al Salam in the light of contemporary application’,1995
3. Adoption level of IFAD project recommended farming practices among smallholder crop farmers in Katsina state", Nigeria;Journal of Agricultural Extension,2016
4. Aboch, S.I. (2016), “Access to credit and performance of small scale farmers in Nigeria”, Doctoral dissertation, University of Nigeria Nsukka, available at: http://repository.unn.edu.ng:8080/xmlui/bitstream/handle/123456789/4347/ABOCHIALL.pdf?sequence=1 (accessed 5 January 2018).