Connick, W. (2019). Sales 101: From finding leads and closing techniques to retaining customers and growing your business, an essential primer on how to sell. Adams Media.
Trích dẫn kiểu Chicago (xuất bản lần thứ 7)Connick, Wendy. Sales 101: From Finding Leads and Closing Techniques to Retaining Customers and Growing Your Business, an Essential Primer on How to Sell. New York: Adams Media, 2019.
Trích dẫn kiểu MLA (xuất bản lần thứ 9)Connick, Wendy. Sales 101: From Finding Leads and Closing Techniques to Retaining Customers and Growing Your Business, an Essential Primer on How to Sell. Adams Media, 2019.
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