Incoming Resources
- Perfection Learning, Logan, Iowa, 2005
- Perfection Learning Corp., Logan, Iowa, 2000
- Perfection Learning, Logan, Iowa, 2003
- Course Crafters, Inc. creator and developer, Perfection Learning Corp. publisher, Haverhill, MA, Logan, Iowa, c2008
- Perfection Learning, Logan, Iowa, 2006
- Perfection Learning, Logan, Iowa, ©2008
- Perfection Form Co., Logan, Iowa, ©1979
- Perfection Learning, Logan, Iowa, c2003