N. Heriyah, Putri.Alya, and Mesa.Neng. 2026. “Public Investment in Renewable Energy R&D under Geopolitical Risks and Economic Uncertainty: A Systematic Review in the Transportation Subsector”. Journal of Creative Power and Ambition (JCPA) 4 (01):87-106. https://edujavare.com/index.php/jcpa/article/view/1150.