RAI URMILA. (2008). EFFECTIVE COMMUNICATION 8TH ED (8TH ED.). HIMALAYA PUBLISHING HOUSE.
Chicago-referens (17:e uppl.)RAI URMILA. EFFECTIVE COMMUNICATION 8TH ED. 8TH ED. MUMBAI: HIMALAYA PUBLISHING HOUSE, 2008.
MLA-referens (9:e uppl.)RAI URMILA. EFFECTIVE COMMUNICATION 8TH ED. 8TH ED. HIMALAYA PUBLISHING HOUSE, 2008.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.