Suhairi, Putri Apriani Batubara, Febrianty Try Andini and M. Alfito Dinova 2023. Correspondence And Business Presentations And Handling Of Customer Complaints. International Journal of Economic Research and Financial Accounting. 1, 4 (Jul. 2023). DOI:https://doi.org/10.55227/ijerfa.v1i4.46.