Serm Janjai. (2012) Diffuse-global correlation models at four locations in Thailand. <i>International Journal of Renewable Energy</i>, <i>Vol. 7</i>(No.1), pp 11-21.Serm Janjai. "Diffuse-global correlation models at four locations in Thailand". International Journal of Renewable Energy Vol. 7 (2012):pp 11-21.Serm Janjai. Diffuse-global correlation models at four locations in Thailand. School of Renewable Energy Technology:ม.ป.ท. 2012.