Fraze, S. D., Hardin, K. K., Brashears, M. T., Haygood, J. L., & Smith, J. H. (2003). The Effects Of Delivery Mode Upon Survey Response Rate And Perceived Attitudes Of Texas Agri-Science Teachers. Journal of Agricultural Education, 44(2), 27–37. https://doi.org/10.5032/jae.2003.02027