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1
المؤلفون: J. A. Guzinski, T. H. Cooper, J. G. Clark
المصدر: ChemInform. 25
مصطلحات موضوعية: Chromatography, Chemistry, General Medicine, High-performance liquid chromatography
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2
المؤلفون: T. L. Hansmeyer, T. H. Cooper
المصدر: Journal of Natural Resources and Life Sciences Education. 22:131-133
مصطلحات موضوعية: Environmental education, Adult education, business.industry, Political science, Environmental resource management, business, Biological sciences, Natural resource
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3
المؤلفون: T. H. Cooper
المصدر: Journal of Agronomic Education. 12:108-109