Chowdhury, Sanjeeda, and Ushio Sumita. “Diffusion of PV in Japan and Germany-Role of Market-Based Incentive and Research and Development (R&D) Investment”. Journal of Technology Innovations in Renewable Energy 1, no. 2 (January 1, 2013): 80–86. Accessed December 5, 2024. https://lifescienceglobalca.com/index.php/jtire/article/view/718.