1. Enhancing the Six Sigma problem-solving methodology using the systems thinking methodologies. (15th May 2009) Authors: Douglas, Alex; Middleton, Saundra; Antony, Jiju; Coleman, Shirley Journal: International journal of six sigma and competitive advantage Issue: Volume 5:Number 2(2009) Page Start: 144 Record Type: Journal Article View Content: Available online (eLD content is only available in our Reading Rooms) ↗