A. M. Ifrad, A. Dita Rarasati, and R. N. Firdaus, “Integrating Solar Photovoltaic Energy Degradation and Financial Performance for Debt Service Capacity Assessment: A Life-Cycle Response Surface Approach”, JPMR, vol. 2, no. 1, pp. 75–100, Aug. 2026, doi: 10.65303/journalpmresearch.v2i1.98.