Jongjit Rittirong และ Pramote Prasartkul. (2013) Kinship networks of the thai elderly in a rural area: a case study of nang rong district, buriram province. Mahidol University:ม.ป.ท.Jongjit Rittirong และ Pramote Prasartkul. 2013. Kinship networks of the thai elderly in a rural area: a case study of nang rong district, buriram province. ม.ป.ท.:Mahidol University;Jongjit Rittirong และ Pramote Prasartkul. Kinship networks of the thai elderly in a rural area: a case study of nang rong district, buriram province. ม.ป.ท.:Mahidol University, 2013. Print.