%0 Journal Article %T Extension: To Serve And Protect - How To Achieve Sustainable Rural Development %A Gillespie %A W. A. %A Mitchell %A F. J. %J Journal of Power and Energy Engineering 电力与能源 %D 2019 %R 10.17159/2413-3221/2019/v47n4a522 %K Adoption %K Extension effectiveness %K Self-perpetuating %K Successful %U http://www.scielo.org.za/scielo.php?script=sci_arttext&pid=S0301-603X2019000400002&lng=en&nrm=iso&tlng=en