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1
المؤلفون: Phil E. Rzewnicki
المصدر: Journal of Agronomic Education. 20:31-36
مصطلحات موضوعية: Agricultural science, Geography
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2
المؤلفون: Russell S. Moomaw, Anne M. Parkhurst, Charles Francis, Phil E. Rzewnicki, Richard L. Thompson, Gary Lesoing, Roger W. Elmore
المصدر: American Journal of Alternative Agriculture. 3:168-173
مصطلحات موضوعية: Agricultural machinery, Computer science, Crop production, Agriculture, business.industry, Replication (statistics), Econometrics, Agricultural engineering, business, Agricultural and Biological Sciences (miscellaneous), Test (assessment)
URL الوصول: https://explore.openaire.eu/search/publication?articleId=doi_________::ba997c9779d3730483e6b1c54d141e00
https://doi.org/10.1017/s0889189300002459