id	domain	url
ideas-1146	u.lipi.go.id	http://u.lipi.go.id/1457703302
ideas-1146	afirm.fpg.unc.edu	https://afirm.fpg.unc.edu/reinforcement
ideas-1146	www.iidc.indiana.edu	https://www.iidc.indiana.edu/pages/reinforcement-in-the-classroom
ideas-1146	doi.org	https://doi.org/10.24256/ideas.v3i1.142
ideas-1146	doi.org	https://doi.org/10.24256/ideas.v3i1.142