id	domain	url
stem-2648	doi.org	https://doi.org/10.12973/eurasia.2016.1227a
stem-2648	doi.org	https://doi.org/10.1016/j.sbspro.2010.07.016
stem-2648	www.icbl.hw.ac.uk	http://www.icbl.hw.ac.uk/ltdi/implementing-it/using.htm
stem-2648	doi.org	https://doi.org/10.1016/j.compedu.2013.05.017
stem-2648	doi.org	https://doi.org/10.1016/j.sbspro.2010.07.016
stem-2648	doi.org	https://doi.org/10.1016/j.compedu.2013.05.017