Behnke, R R.(1998). Productive arousal as a function of task difficulty in information processing. Communication Research Reports, 15(3), 235-244. doi:10.1080/08824099809362119
MLA CitationBehnke, Ralph R. "Productive Arousal As a Function of Task Difficulty in Information Processing". Communication Research Reports, 15.3 ( 1998 ): 235-244.
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