?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adissertation&rft.aufirst=Mona&rft.aulast=Afersa&rft.au=Afersa%2C+Mona&rft.inst=Universitas+Negeri+Padang&rft.title=The+Ability+of+Second+Grade+Senior+High+School+Students+in+Speaking+Transactional+and+Interpersonal+Conversation+at+SMA+Negeri+7+Padang&rft.degree=Bachelor%2FSkripsi&rft.date=2011