Siriwan Pakkhem. (2007) A phonological comparison of Pattani Malay as spoken in Narathiwat, Krabi and Pathumthani. Mahidol University,:ม.ป.ท.Siriwan Pakkhem. 2007. A phonological comparison of Pattani Malay as spoken in Narathiwat, Krabi and Pathumthani. ม.ป.ท.:Mahidol University,;Siriwan Pakkhem. A phonological comparison of Pattani Malay as spoken in Narathiwat, Krabi and Pathumthani. ม.ป.ท.:Mahidol University, 2007. Print.