Kessy, J.F., Oktingati, A. and Solberg, B. (1993) The Economics of Rehabilitating Denuded Areas in Tanzania: The Case of Legho Mulo Moshi. Faculty of Forestry Record No. 60, Sokoine University of Agriculture.
 Kessy, J.F. and Oktingati, A. (1994) An Analysis of Some Socio-Economic Factors Affecting Farmer’s Involvement in Agroforestry Extension Projects in Tanzania. Annals of Forestry, 2, 26-32.
 Oktingàti, A. and Kessy, J.F. (1991) The Farming Systems on Mount Kilimanjaro. In: Newmark, W.D., Ed., Conservation of Mount Kilimanjaro, Chapter 8, IUCN, Gland.
 Flora, K., Mashindano, O., Rweyemam, D. and Charles, P. (2011) Poverty Escape Routes in Central Tanzania: Copping Strategies in Singida and Dodoma Regions. Volume III, The Economic and Social Research Foundation (ESRF), Dar es Salaam.
 Kessy, J.F. (1998) Conservation and Utilization of Natural Resources in the East Usambara Forest Reserves: Conventional Views and Local Perspectives. Tropical Forest Management Papers No. 18, Wageningen.
 UNDP (2007) Capacity Assessment Methodology. Users Guide, Capacity Development Group, Bureau for Development Policy, UNDP.
 Wignaraja, K. (2009) Capacity Development: A UNDP Primer. UNDP, USA.
 Miller, J.A. and Osinski, D.M. (2002) Training Needs Assessment.
 Chris, B., Sparrow, P., Vernon, G. and Houldsworth, E. (2011) International Human Resources Management. 3rd Edition, Chartered Institute of Personnel and Development, London.
 Itika, J. (2011) Fundamentals of Human Resources Management: Emerging Experiences from Africa. African Public Administration and Management Series, Vol. 2, African Studies Centre, Leiden.
 Robert, L. and Hendon, J. (2012) Human Resources Management: Functions, Applications, Skill Development. Sage Publications, Thousand Oaks.