INVESTIGATION OF EFFICIENCY ASPECTS IN 3×3 PHOTOVOLTAIC PLANT USING MODEL OF SHADING. ETIMA, [S. l.], v. 1, n. 1, p. 309–318, 2021. Disponível em: https://js.ugd.edu.mk/index.php/etima/article/view/4522. Acesso em: 3 okt. 2025.