Phanarat Phanuschutabool และผู้แต่งคนอื่นๆ. (2008) Working situation and social status affecting the age at first marriage in urban areas. National Institute of Development Administration:ม.ป.ท.Phanarat Phanuschutabool และผู้แต่งคนอื่นๆ. 2008. Working situation and social status affecting the age at first marriage in urban areas. ม.ป.ท.:National Institute of Development Administration;Phanarat Phanuschutabool และผู้แต่งคนอื่นๆ. Working situation and social status affecting the age at first marriage in urban areas. ม.ป.ท.:National Institute of Development Administration, 2008. Print.