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American Psychological Association (APA), 2006
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Nous Publications, 1989
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JSTOR, 1978
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Indiana University, 1978
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2017
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Science Publishing Group, 2013
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Society for Scientific Exploration, 2022
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Society for Scientific Exploration, 2021
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2020
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Society for Scientific Exploration, 2020
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Society for Scientific Exploration, 2019
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Society for Scientific Exploration, 2020