Arimbawa, A. R., . Sumarwahyudi, L. Indrawati, F. Rochbeind, and D. R. Rini. “Stone Tiles: Unique Souvenirs for the Sanan Malang Educational Tourism Destination”. KnE Social Sciences, Vol. 5, no. 6, June 2021, pp. 257-62, doi:10.18502/kss.v5i6.9207.