Correspondence is exists delivery writing used convey message business or non- business For the party concerned . Presentation business is exists communications that are in scope report presented _ to homogeneous audience in something environment business . Handling complaint customer is step important in customer service because affect reputation company . Study This aim For explore What That correspondence business , presentation business and handling complaint customer . The research method used is approach qualitative through analysis deep literature . _ Data from study This collected through studies covering literature _ books , journals , articles , and sources Trusted other . Research results show scope definition , function , and type correspondence business , mail letters and presentations business .
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