data flow diagram for e post office,the SRS and modules of e post office

i want to find a data flow diagram of electronic post
so if it is possible please send me;

Thanks&regards
HiralalSingh
9931947435

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Dear;
Sir/Madam
I want to data flow diagram of electronic post(e post)
so please help me

Thanks & regards
Hiralal Singh

To get full information or details of data flow diagram of e post office please have a look on the pages

http://studentbank.in/report-e-post-offi...?pid=46587

http://createlydiagram/example/hmcrmaqu/Post+Office+Management+System

if you again feel trouble on data flow diagram of e post office please reply in that page and ask specific fields in data flow diagram of e post office

Dear;
Sir/Madam
I want to data flow diagram of online post office using credit card transaction
so please help me