An operational framework for improving decentralised agricultural extension : a Ghanaian case study : a thesis submitted in partial fulfilment of the requirement for the degree of Doctor of Philosophy (Ph. D.) in Agricultural Extension, Massey University, Institute of Natural Resources, Agricultural/Horticultural Systems & Management
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Title:Author:Smith, Dudley MartinDate:1953
Title:Author:Jiang, G; Yule, I; Grafton, M; Holmes, ADate:2017-10-16