Lambda Sigma (Pepperdine) Raises over $18,000 for Conquer Paralysis Now with PSI U THINK YOU CAN DANCE Philanthropy In 1983, Lambda Omega Sigma became the first Greek Fraternity at Pepperdine with the motto “Through Service We Shine” and in 1998 they became the Lambda Sigma Chapter of Psi Upsilon, and kept that focus on service. […]
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