Experimental and Theoretical Investigation of a Modified Solar Still Incorporating PCM, CuO Nano-Coated Absorber, and a Copper Spiral Tube. ITEGAM-JETIA, [S. l.], v. 12, n. 59, p. 906–915, 2026. DOI: 10.5935/jetia.v12i59.3742. Disponível em: https://itegam-jetia.org/journal/index.php/jetia/article/view/3742. Acesso em: 22 oct. 2026.