Kurniyati, N. E. “Pengaruh Ketrampilan Bahasa Asing Terhadap Kelancaran Operasional Di Food and Beverage Product Hyatt Regency Yogyakarta”. Media Wisata, vol. 19, no. 1, May 2021, pp. 97-108, doi:10.36276/mws.v19i1.70.