Schiffman, Stephan (Personal Name)

His The consultant's handbook, c1988: t.p. (Stephan Schiffman) p. 5 (Certified management consultant, his background features work in a variety of communications, broadcasting, psychotherapy, and brokerage services)

High-efficiency selling, 1997: CIP t.p. (Stephan Schiffman) data sheet (b. 6-14-49)

Make it your business, c1998: t.p. (Stephan Schiffman) jkt. (founder/pres., D.E.I. Management Group)

Stephen Schiffman's telesales, c2002: ECIP t.p. (Stephen Schiffman)