P. Kiatpachai, A. Suksangpanomrung, P. Thiangtham, C. Keepaiboon, W. Duangthongsuk, and S. Wongwises, “Effect of fin efficiency models on air-side performance of crimped spiral fin-and-tube heat exchangers”, sau.j.sci.tech., vol. 4, no. 2, pp. 36–55, Dec. 2018.