1. Kanawaty, G. (1992). Introduction to Work Study, 4th (Revised) Edition. Geneva: International Labour Office.
2. Dogan, A., Bag, M. and Aydın, A. (1989). İmalatcı Kamu Kuruluslarında Verimlilik Karsilastirmalari. Ankara: MPM Yayinlari.
3. Galarneau, D. and Dumas, C. (1993). About Productivity, Perspectives on Labour and Income. (Statistics Canada, Catalogue 75-001E), 5(1), 39-48.
4. Pisuchpen, R. and Chansangar, W. (2014). Modifying Production Line for Productivity Improvement: A Case Study of Vision Lens Factory. Songklanakarin Journal of Science and Technology, 36(3), 345-357.
5. Lan S., Wang, X. and Ma, L. (2009). Optimization of Assembly Line Based on Work Study. Industrial Engineering and Engineering Management. 2009. IE&EM‘09. 16th International Conference, 4, 813-816.