Tuominen, K., & Malmberg, L. (2012). Six Sigma excellence criteria: Self-assessment work book : 38 searching questions and contrasting pairs of examples : what separates the successful from the average? Benchmarking Ltd..
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Tuominen, Kari, و Lasse Malmberg. Six Sigma Excellence Criteria: Self-assessment Work Book : 38 Searching Questions and Contrasting Pairs of Examples : What Separates the Successful from the Average? [Turku, Finland]: Benchmarking Ltd., 2012.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Tuominen, Kari, و Lasse Malmberg. Six Sigma Excellence Criteria: Self-assessment Work Book : 38 Searching Questions and Contrasting Pairs of Examples : What Separates the Successful from the Average? Benchmarking Ltd., 2012.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.