REX EHIEDUM, USIADE, and OBAINKE, FRANCIS. “INVESTIGATION OF THE IMPACT OF BLACK SOOT DEPOSITION ON PHOTOVOLTAIC (PV) SOLAR PANEL OUTPUT EFFICIENCY IN AGBOR METROPOLIS, DELTA STATE, NIGERIA”. GPH-International Journal of Electrical And Electronics Engineering 3, no. 1 (June 28, 2025): 18-29. Accessed September 22, 2025. https://gphjournal.org/index.php/eee/article/view/1990.