Anabuki, Koichiro, Haruhiko Kaneta, and Kakuro Amasaka. “Proposal And Validity Of Patent Evaluation Method - A-PPM - For Corporate Strategy”. International Journal of Management & Information Systems (IJMIS) 15, no. 3 (June 16, 2011): 129–138. Accessed July 17, 2024. https://clutejournals.com/index.php/IJMIS/article/view/4649.