Dwiputra, R. 2013. Preferensi Wisatawan Terhadap Sarana Wisata di Kawasan Wisata Alam Erupsi Merapi. Journal of Regional and City Planning. 24, 1 (Apr. 2013), 35-48. DOI:https://doi.org/10.5614/jpwk.2013.24.1.3.