PONDYAL, K. N.; BHATTARAI, B. K.; SAPKOTA, B.; KJELDSTAD, B. Solar Radiation Potential at Four Sites of Nepal. Journal of the Institute of Engineering, [S. l.], v. 8, n. 3, p. 189–197, 2012. DOI: 10.3126/jie.v8i3.5944. Disponível em: https://www.nepjol.info/index.php/JIE/article/view/5944. Acesso em: 25 apr. 2024.