Hasyim, F., Prastowo, T. and Jatmiko, B. (2020) “The Use of Android-Based PhET Simulation as an Effort to Improve Students’ Critical Thinking Skills during the Covid-19 Pandemic”, International Journal of Interactive Mobile Technologies (iJIM), 14(19), pp. pp. 31–41. doi: 10.3991/ijim.v14i19.15701.