Wilujeng, Ericka Sukma Putri, and Yulian Findawati. 2017. “Educational Ball Labyrinth Game Using Accelerometer Sensor As a Media for Introducing National Capitals in the World”. JOINCS (Journal of Informatics, Network, and Computer Science) 1 (1), 9-20. https://doi.org/10.21070/10.21070/joincs.v1i1.800.