Doyo, Daisuke, Katsuhiro Sakamoto, and Katsuya Aoki. “A Production/Transaction-Related Model Using Control Theory”. Journal of Business Case Studies (JBCS) 5, no. 6 (November 1, 2009): 59–66. Accessed July 18, 2024. https://clutejournals.com/index.php/JBCS/article/view/4733.