Nakamura, Mari, Masato Kuniyoshi, Manabu Yamaji, and Kakuro Amasaka. “Proposal And Validity Of The Product Planning Business Model A-POST ? The Application Of The Text Mining Method To Scooter Exterior Design”. Journal of Business Case Studies (JBCS) 4, no. 9 (September 1, 2008): 61–72. Accessed July 18, 2024. https://clutejournals.com/index.php/JBCS/article/view/4808.