1. Abbott F 1999. The role of horses in forestry based on case studies from the UK and Sweden. Quarterly Journal of Forestry 93(4):299-306.
2. Abdukshekur O Oubrecht J 1995. Prerequisites for a better use of draught animal power in Ethiopia. Agricultura Tropica et Subtropica No. 28:29-40; 17 ref.
3. Afis Dieng M 2000. Utilisation et condition de l'ane en zone soudano sahelienne: le cas du Senegal. Ethnozootechnie 65 75-80.
4. Aganga AA Maphorisa K 1994. Characteristics and uses of draught donkeys in Botswana. In: Starkey P Mwenya E Stares J eds. Improving Animal Traction Technology. Proceedings of First Workshop of the Animal Traction Network for Eastern and Southern Africa (ATNESA) held 18-23 January 1992 Lusaka Zambia. CTA 146-149.
5. Aggarwal A Upadhyay RC 1996. Use of crossbred bullocks as draught animals: need of the day. Indian Dairyman 48(6):17-21; 8 ref.