id	domain	url
binhm-506	doi.org	https://doi.org/10.26842/binhm.7.2021.16.3.0231
binhm-506	doi.org	https://doi.org/10.26842/binhm.7.2021.16.3.0231
binhm-506	www.britannica.com	https://www.britannica.com/event/paleolithic-period
binhm-506	en.wikipedia.org	https://en.wikipedia.org/wiki/stone_tool
binhm-506	ibgmiq.org	http://ibgmiq.org/ibgm/index.php/ibgm/article/view/263
binhm-506	arstechnica.com	https://arstechnica.com/science/2018/10/archaeologistsfind-300000-year-old-stone-tools-in-saudi-arabia