Wijaya, T., N. Nurhadi, A. M. Kuncoro, and P. Rahmawaty. “Qualitative Study of Yogyakarta Palace Culinary Gastronomic Tourism”. 2021. Global Journal of Business, Economics and Management: Current Issues, vol. 11, no. 1, June 2021, pp. 58-68, doi:10.18844/gjbem.v11i1.5115.