LIU, Chengpeng. Investigation of Optimal Tilt Angle for Solar PV Panels in Lhasa. International Journal of Advanced Engineering and Technology Research, [S. l.], v. 3, n. 1, p. 51–57, 2026. DOI: 10.54097/yrchgv03. Disponível em: https://ijaetr.org/index.php/ojs/article/view/136. Acesso em: 22 oct. 2026.