X.X. Gong, R.K. Daronovna, A.H. Wong, P.S. JosephNg. “Where Are You? Tracking Kid Nightmare!”. Turkish Journal of Computer and Mathematics Education (TURCOMAT), vol. 12, no. 14, Aug. 2021, pp. 946-58, doi:10.17762/turcomat.v12i14.10374.