References

GRESYA

• http://www.britannica.com/place/ancient-Greece
• http://www.timemaps.com/civilization-ancient-greeks
• http://www.history.com/topics/ancient-history/ancient-greece
• https://en.wikipedia.org/wiki/Ancient_Greece
• http://www.ancientgreece.co.uk/war/home_set.html
• http://www.ancienthistorylists.com/greek-history/top-10-important-people-ancient-greece/

AGHAM, TEKNOLOHIYA AT KALIKASAN

• http://sciencenetlinks.com/lessons/technology-past-present-and-future/
• http://www.forbes.com/pictures/fgjd45eldm/1-computing-everywhere-2/
• http://www.gartner.com/technology/research/top-10-technology-trends/
• http://www.technologyreview.com/lists/technologies/2015/
• http://www.timemaps.com/history/china-500bc
• https://en.wikipedia.org/wiki/List_of_technologies

INCA CIVILIZATION

• The World History & Civilization – Social Studies Series – Revised Edition
• World Civilizations – History & Culture
• www.ancient.eu/Inca_Civilization/