Triceps pushups are a very challenging exercise for the back of the arms. Like traditional pushups, they challenge a variety of muscles in the body (not just the triceps)...what makes them different is your hand position on the floor. By using a narrow hand-placement, you can really target the triceps muscles.
However, according to (Kotler & Keller, 2006) the formal definition of marketing is an organizational function and a set of processes for creating, communication, and delivering value to customers and for managing customer relationships in ways that benefit the organization and its shareholders(Kotler & Keller, p.4).
Philip Kotler is the S.C. Johnson & Son Distinguished Professor of International Marketing at the Kellogg School of Management at Northwestern University. He received his Masters degree at the University of Chicago and his Ph.D. at MIT, both in economics.