Chamnan-asawakul, T., S. Sertpunya, P. . Nakpathumswat, and P. Ekwarangkoon. “An Analysis of Strategies and Problems in English E-mail Writing of Employees Working on a Thai Commercial Bank in Bangkok, Thailand”. Rajamangala University of Technology Tawan-ok Social Science Journal, vol. 14, no. 1, June 2025, pp. 11-24, doi:10.63271/rmuttosj.v14i1.273238.