Buana, R.T. dan Putra, A.K. 2023. Peningkatan Kemampuan Berpikir Spasial: Implementasi Model Problem Based Learning melalui Pendekatan Self Efficacy Berbantuan WebGIS Inarisk. Journal of Education Action Reseach. 7, 3 (Agu 2023), 310–319. DOI:https://doi.org/10.23887/jear.v7i3.63881.