Tuominen, K., & Toivonen, R. (2012). Starting up your skilled trade business enterprise: Self-assessment work book : 31 probing questions and contrasting pairs of examples : what separates the successful from the average? Benchmarking Ltd..
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Tuominen, Kari, و Raimo Toivonen. Starting Up Your Skilled Trade Business Enterprise: Self-assessment Work Book : 31 Probing 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 Raimo Toivonen. Starting Up Your Skilled Trade Business Enterprise: Self-assessment Work Book : 31 Probing Questions and Contrasting Pairs of Examples : What Separates the Successful from the Average? Benchmarking Ltd., 2012.