Style Of Business Letter

1. Indented Business Letter
   In this format letter head, complementary close, and the signature is in the middle of the letter. While the date is in a position flush right. While inside the address, subject, Salutation, and the body of the letter is in the left position. However, the inside address and the subject line will grow spaces or any line is getting to the right as much as the number of lines from inside the address and subject. At the beginning of each paragraph of the letter have spaces.
   
2. Full Block Business Letter
   In this format letter head, date, inside address, subject, Salutation, the body of the letter, complementary close, signature or of the overall format of the letter is in the left position.
   
   
3. Modified Block Business Letter 
   In this format letter head, date, complementary close, and the signature is in a position flush right. While inside the address, subject, Salutation, the body of the letter, or if the presence of an attachment letter enclosure, is in the left position.
   
   
   
   
4. Semi-Block English Letter
   In this format letter head, date, complementary close and signature are in the middle of the average position of the letter. While inside the address, subject, Salutation, body of the letter is in the left position. At the beginning of each paragraph of the letter have spaces.
   
   
5. Hanging English Letter
   In this format letter head is in the middle position of the letter, while the date, complementary close, and the signature is in the right position letter. And the parts inside the address, subject, Salutation, body of the letter is in the left position. At the beginning of each line of a paragraph of the letter is in the position of the left, but the rows next to the paragraphs have spaces.
   

sumber :

[1] http://www.ego4u.com/en/business-english/communication/business-letter/

[2] http://www.letterformat.net/letter/business-letter-format-styles