Marilyn Larson
“Very informative and presented in an understandable manner. Dr. Berk presented with a great sense of humor that kept it interesting.”
Attended in 1999
Supervisor Purchasing Dept
Otter Tail Power
“Very informative and presented in an understandable manner. Dr. Berk presented with a great sense of humor that kept it interesting.”
See all testimonials from: Otter Tail Power