Purnomo, Y. and Wulandari, A. (2025) “A Geoprocessing Approach Using Poi Visibility Index for Identifying Potential Routes in Designing Sustainable Tourism Development: The Case Study of Singkawang, Indonesia”, JURNAL GEOGRAFI, 17(2), pp. 223–234. doi: 10.24114/jg.v17i2.64723.