Winda Rosita Dewi, and Sylvia Balfas. “STRATEGI MARKETING GRAND PURI SARON BOUTIQUE HOTEL YOGYAKARTA DALAM MEMPERTAHANKAN HUNIAN KAMAR DI MASA PANDEMI COVID-19”. JURNAL NUSANTARA, vol. 5, no. 2, Sept. 2022, pp. 41-54, doi:10.63986/nsn.v5i2.31.