P. Meksuwan, D. Chenvidhya, S. Thepa, K. Kirtikara, R. Songprakorp, and B. Wiengmoon, “Quantifying Soiling Accumulation on Photovoltaic Modules Using Standard Testing Results”, J. Adv. Dev. Eng. Sci., vol. 11, no. 31, pp. 9–24, Aug. 2023.