Tuangtip Chantra และผู้แต่งคนอื่นๆ. (1995) Level trends determinants and demographic consequences of contraceptive sterilization in Thailand. National Institute of Development Administration:ม.ป.ท.Tuangtip Chantra และผู้แต่งคนอื่นๆ. 1995. Level trends determinants and demographic consequences of contraceptive sterilization in Thailand. ม.ป.ท.:National Institute of Development Administration;Tuangtip Chantra และผู้แต่งคนอื่นๆ. Level trends determinants and demographic consequences of contraceptive sterilization in Thailand. ม.ป.ท.:National Institute of Development Administration, 1995. Print.