Jolson, M A.(1988). Qualifying sales leads: The tight and loose approaches. Industrial Marketing Management, 17(3), 189-196. doi:10.1016/0019-8501(88)90002-8
MLA CitationJolson, Marvin A. "Qualifying Sales Leads: The Tight and Loose Approaches". Industrial Marketing Management, 17.3 ( 1988 ): 189-196.
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