Shown, from left, are scholarship recipients: Olivia Johnson (DuBois) and Riley Presloid (Punxsutawney) with Psi committee Chairwoman Becky Raybuck. Missing is Gabby Dinger (Fairmount City).

Rangan, V. Kasturi, Nava Ashraf, and Marie Bell. "PSI: Social Marketing Clean Water." Harvard Business School Case 507-052, January 2007. (Revised December 2007.) (Request a courtesy copy.) ...