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2
Published 1974
Full text available in DOAJ: Directory of Open Access Journals: 1974 to present
Electronic
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3
Published 1982
Full text available in DOAJ: Directory of Open Access Journals: 2005 to present
Electronic
Journal
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4
Published 2006
Full text available in DOAJ: Directory of Open Access Journals: 2006 to present
Electronic
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5
Published 1991
Full text available in EBSCO Open Access Journals: 1991 - 2016Full text available in DOAJ: Directory of Open Access Journals: 2014 to present
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Journal
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6
7
Electronic
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