อ้างอิง ของ เมกะลิท

  1. ↑ "Europe's Megalithic Monuments Originated in France and Spread by Sea Routes, New Study Suggests".
  2. ↑ Herbert, A. Cyclops Christianus, or the supposed Antiquity of Stonehenge. London, J. Petheram, 1849.
  3. ↑ "Europe's Mighty Megaliths Mark the Winter Solstice". National Geographic Society. 21 December 2017.
  4. ↑ Johnson, W. (1908) p. 67. Retrieved July 28, 2018.