Ahmad, A., DaherA. ‬., T. Abdel-Jalil, and J. Humaidat. “Problems of Export Documentary Letters of Credit That Face Jordanian Banks During Corona-Virus Pandemic (Covid-19) ‘A Field Study’”. Jordan Journal of Applied Science-Humanities Series, Vol. 34, no. 1, Jan. 2023, pp. 152-66, doi:10.35192/jjoas-h.v34i1.372.