, Department of Soil Science, Faculty of Agriculture, Ambrose Alli University, P.M.B 14, Ekpoma, Edo State, Nigeria.
, - Instituto de bosques y sociedad. Facultad de Ciencias Forestales y Recursos naturales, Universidad Austral de Chile. Casilla 567, Valdivia, Chile. - Escuela de Ciencias Forestales. Facultad de Recursos Naturales, Universidad Católica de Temuco. Casilla 15-D, Temuco, Chile (Chile)
, Instituto de Manejo de Bosques, Producción y Medio Ambiente. Universidad Austral de Chile. Casilla 567, Valdivia, Chile.
, Department of Agricultural Economics and Extension, Nnamdi Azikiwe University, Awka, Anambra State, Nigeria. (Nigeria)
, Department of Agricultural Economics and Extension, Nnamdi Azikiwe University, Awka, Anambra State, Nigeria
, Center for Entrepreneurship and Development Research, University of Nigeria, Nsukka, Enugu State, Nigeria
, University of Nigeria
, Department of vocational education Abia state university, Uturu, Nigeria.
, Department of Vocational Studies, Abia State University, Uturu
, Department of Agricultural Education, University of Nigeria, Nsukka, Enugu State

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